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                    Map
            
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                    测试键值对是否存在及删除元素
            
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                    将 map 的键值对调
            
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<li class="chapter " data-level="1.2.3.6.3" data-path="../../the-way-to-go/eBook/09.3.html">
  
  <a href="../../the-way-to-go/eBook/09.3.html">
    
                    
                    锁和 sync 包
            
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<li class="chapter " data-level="1.2.3.6.4" data-path="../../the-way-to-go/eBook/09.4.html">
  
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                    精密计算和 big 包
            
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</li>

<li class="chapter " data-level="1.2.3.6.5" data-path="../../the-way-to-go/eBook/09.5.html">
  
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                    自定义包和可见性
            
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<li class="chapter " data-level="1.2.3.6.6" data-path="../../the-way-to-go/eBook/09.6.html">
  
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                    为自定义包使用 godoc
            
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<li class="chapter " data-level="1.2.3.6.7" data-path="../../the-way-to-go/eBook/09.7.html">
  
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                    使用 go install 安装自定义包
            
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<li class="chapter " data-level="1.2.3.6.8" data-path="../../the-way-to-go/eBook/09.8.html">
  
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                    自定义包的目录结构、go install 和 go test
            
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<li class="chapter " data-level="1.2.3.6.9" data-path="../../the-way-to-go/eBook/09.9.html">
  
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                    通过 Git 打包和安装
            
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<li class="chapter " data-level="1.2.3.6.10" data-path="../../the-way-to-go/eBook/09.10.html">
  
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                    Go 的外部包和项目
            
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<li class="chapter " data-level="1.2.3.6.11" data-path="../../the-way-to-go/eBook/09.11.html">
  
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                    在 Go 程序中使用外部库
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.7" data-path="../../the-way-to-go/eBook/10.0.html">
  
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                    结构（struct）与方法（method）
            
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<li class="chapter " data-level="1.2.3.7.1" data-path="../../the-way-to-go/eBook/10.1.html">
  
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                    结构体定义
            
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<li class="chapter " data-level="1.2.3.7.2" data-path="../../the-way-to-go/eBook/10.2.html">
  
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                    使用工厂方法创建结构体实例
            
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<li class="chapter " data-level="1.2.3.7.3" data-path="../../the-way-to-go/eBook/10.3.html">
  
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                    使用自定义包中的结构体
            
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<li class="chapter " data-level="1.2.3.7.4" data-path="../../the-way-to-go/eBook/10.4.html">
  
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                    带标签的结构体
            
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<li class="chapter " data-level="1.2.3.7.5" data-path="../../the-way-to-go/eBook/10.5.html">
  
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                    匿名字段和内嵌结构体
            
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<li class="chapter " data-level="1.2.3.7.6" data-path="../../the-way-to-go/eBook/10.6.html">
  
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                    方法
            
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<li class="chapter " data-level="1.2.3.7.7" data-path="../../the-way-to-go/eBook/10.7.html">
  
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                    类型的 String() 方法和格式化描述符
            
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<li class="chapter " data-level="1.2.3.7.8" data-path="../../the-way-to-go/eBook/10.8.html">
  
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                    垃圾回收和 SetFinalizer
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.8" data-path="../../the-way-to-go/eBook/11.0.html">
  
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                    接口（interface）与反射（reflection）
            
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<li class="chapter " data-level="1.2.3.8.1" data-path="../../the-way-to-go/eBook/11.1.html">
  
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                    接口是什么
            
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<li class="chapter " data-level="1.2.3.8.2" data-path="../../the-way-to-go/eBook/11.2.html">
  
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                    接口嵌套接口
            
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<li class="chapter " data-level="1.2.3.8.3" data-path="../../the-way-to-go/eBook/11.3.html">
  
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                    类型断言：如何检测和转换接口变量的类型
            
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<li class="chapter " data-level="1.2.3.8.4" data-path="../../the-way-to-go/eBook/11.4.html">
  
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                    类型判断：type-switch
            
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<li class="chapter " data-level="1.2.3.8.5" data-path="../../the-way-to-go/eBook/11.5.html">
  
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                    测试一个值是否实现了某个接口
            
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<li class="chapter " data-level="1.2.3.8.6" data-path="../../the-way-to-go/eBook/11.6.html">
  
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                    使用方法集与接口
            
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<li class="chapter " data-level="1.2.3.8.7" data-path="../../the-way-to-go/eBook/11.7.html">
  
  <a href="../../the-way-to-go/eBook/11.7.html">
    
                    
                    第一个例子：使用 Sorter 接口排序
            
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<li class="chapter " data-level="1.2.3.8.8" data-path="../../the-way-to-go/eBook/11.8.html">
  
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                    第二个例子：读和写
            
    </a>
    

    
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<li class="chapter " data-level="1.2.3.8.9" data-path="../../the-way-to-go/eBook/11.9.html">
  
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                    空接口
            
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<li class="chapter " data-level="1.2.3.8.9.1" data-path="../../the-way-to-go/eBook/11.10.html">
  
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                    反射包
            
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<li class="chapter " data-level="1.2.3.8.9.2" data-path="../../the-way-to-go/eBook/11.11.html">
  
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                    Printf 和反射
            
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<li class="chapter " data-level="1.2.3.8.9.3" data-path="../../the-way-to-go/eBook/11.12.html">
  
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                    接口与动态类型
            
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<li class="chapter " data-level="1.2.3.8.9.4" data-path="../../the-way-to-go/eBook/11.13.html">
  
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                    总结：Go 中的面向对象
            
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<li class="chapter " data-level="1.2.3.8.9.5" data-path="../../the-way-to-go/eBook/11.14.html">
  
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                    结构体、集合和高阶函数
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.4" >
  
      <span>
            
                    
                    第三部分：Go 高级编程
            
    </span>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.4.1" data-path="../../the-way-to-go/eBook/12.0.html">
  
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                    读写数据
            
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<li class="chapter " data-level="1.2.4.1.1" data-path="../../the-way-to-go/eBook/12.1.html">
  
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                    读取用户的输入
            
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<li class="chapter " data-level="1.2.4.1.2" data-path="../../the-way-to-go/eBook/12.2.html">
  
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                    文件读写
            
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<li class="chapter " data-level="1.2.4.1.3" data-path="../../the-way-to-go/eBook/12.3.html">
  
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                    文件拷贝
            
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<li class="chapter " data-level="1.2.4.1.4" data-path="../../the-way-to-go/eBook/12.4.html">
  
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                    从命令行读取参数
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.5" data-path="../../the-way-to-go/eBook/12.5.html">
  
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                    用 buffer 读取文件
            
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<li class="chapter " data-level="1.2.4.1.6" data-path="../../the-way-to-go/eBook/12.6.html">
  
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                    用切片读写文件
            
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<li class="chapter " data-level="1.2.4.1.7" data-path="../../the-way-to-go/eBook/12.7.html">
  
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                    用 defer 关闭文件
            
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<li class="chapter " data-level="1.2.4.1.8" data-path="../../the-way-to-go/eBook/12.8.html">
  
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                    使用接口的实际例子：fmt.Fprintf
            
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<li class="chapter " data-level="1.2.4.1.9" data-path="../../the-way-to-go/eBook/12.9.html">
  
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                    格式化 JSON 数据
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.10" data-path="../../the-way-to-go/eBook/12.10.html">
  
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                    XML 数据格式
            
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<li class="chapter " data-level="1.2.4.1.11" data-path="../../the-way-to-go/eBook/12.11.html">
  
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                    用 Gob 传输数据
            
    </a>
    

    
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<li class="chapter " data-level="1.2.4.1.12" data-path="../../the-way-to-go/eBook/12.12.html">
  
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                    Go 中的密码学
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.2.4.2" data-path="../../the-way-to-go/eBook/13.0.html">
  
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                    错误处理与测试
            
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<li class="chapter " data-level="1.2.4.2.1" data-path="../../the-way-to-go/eBook/13.1.html">
  
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                    错误处理
            
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<li class="chapter " data-level="1.2.4.2.2" data-path="../../the-way-to-go/eBook/13.2.html">
  
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                    运行时异常和 panic
            
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<li class="chapter " data-level="1.2.4.2.3" data-path="../../the-way-to-go/eBook/13.3.html">
  
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                    从 panic 中恢复（Recover）
            
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</li>

<li class="chapter " data-level="1.2.4.2.4" data-path="../../the-way-to-go/eBook/13.4.html">
  
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                    自定义包中的错误处理和 panicking
            
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</li>

<li class="chapter " data-level="1.2.4.2.5" data-path="../../the-way-to-go/eBook/13.5.html">
  
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                    一种用闭包处理错误的模式
            
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<li class="chapter " data-level="1.2.4.2.6" data-path="../../the-way-to-go/eBook/13.6.html">
  
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                    启动外部命令和程序
            
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<li class="chapter " data-level="1.2.4.2.7" data-path="../../the-way-to-go/eBook/13.7.html">
  
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                    Go 中的单元测试和基准测试
            
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<li class="chapter " data-level="1.2.4.2.8" data-path="../../the-way-to-go/eBook/13.8.html">
  
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                    测试的具体例子
            
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<li class="chapter " data-level="1.2.4.2.9" data-path="../../the-way-to-go/eBook/13.9.html">
  
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                    用（测试数据）表驱动测试
            
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<li class="chapter " data-level="1.2.4.2.10" data-path="../../the-way-to-go/eBook/13.10.html">
  
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                    性能调试：分析并优化 Go 程序
            
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</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3" data-path="../../gopl/">
  
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                    Go语言圣经
            
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<li class="chapter " data-level="1.3.1" data-path="../../gopl/preface.html">
  
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                    前言
            
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<li class="chapter " data-level="1.3.1.1" data-path="../../gopl/ch0/ch0-01.html">
  
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                    Go语言起源
            
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<li class="chapter " data-level="1.3.1.2" data-path="../../gopl/ch0/ch0-02.html">
  
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                    Go语言项目
            
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<li class="chapter " data-level="1.3.1.3" data-path="../../gopl/ch0/ch0-03.html">
  
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                    本书的组织
            
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<li class="chapter " data-level="1.3.1.4" data-path="../../gopl/ch0/ch0-04.html">
  
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                    更多的信息
            
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<li class="chapter " data-level="1.3.1.5" data-path="../../gopl/ch0/ch0-05.html">
  
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                    致谢
            
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<li class="chapter " data-level="1.3.2" data-path="../../gopl/ch1/ch1.html">
  
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                    入门
            
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<li class="chapter " data-level="1.3.2.1" data-path="../../gopl/ch1/ch1-01.html">
  
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                    Hello, World
            
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<li class="chapter " data-level="1.3.2.2" data-path="../../gopl/ch1/ch1-02.html">
  
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                    命令行参数
            
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<li class="chapter " data-level="1.3.2.3" data-path="../../gopl/ch1/ch1-03.html">
  
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                    查找重复的行
            
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<li class="chapter " data-level="1.3.2.4" data-path="../../gopl/ch1/ch1-04.html">
  
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                    GIF动画
            
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<li class="chapter " data-level="1.3.2.5" data-path="../../gopl/ch1/ch1-05.html">
  
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                    获取URL
            
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<li class="chapter " data-level="1.3.2.6" data-path="../../gopl/ch1/ch1-06.html">
  
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                    并发获取多个URL
            
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<li class="chapter " data-level="1.3.2.7" data-path="../../gopl/ch1/ch1-07.html">
  
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                    Web服务
            
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<li class="chapter " data-level="1.3.2.8" data-path="../../gopl/ch1/ch1-08.html">
  
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                    本章要点
            
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    </ul>
    
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<li class="chapter " data-level="1.3.3" data-path="../../gopl/ch2/ch2.html">
  
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                    程序结构
            
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<li class="chapter " data-level="1.3.3.1" data-path="../../gopl/ch2/ch2-01.html">
  
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                    命名
            
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<li class="chapter " data-level="1.3.3.2" data-path="../../gopl/ch2/ch2-02.html">
  
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                    声明
            
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<li class="chapter " data-level="1.3.3.3" data-path="../../gopl/ch2/ch2-03.html">
  
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                    变量
            
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<li class="chapter " data-level="1.3.3.4" data-path="../../gopl/ch2/ch2-04.html">
  
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                    赋值
            
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<li class="chapter " data-level="1.3.3.5" data-path="../../gopl/ch2/ch2-05.html">
  
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                    类型
            
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<li class="chapter " data-level="1.3.3.6" data-path="../../gopl/ch2/ch2-06.html">
  
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                    包和文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.7" data-path="../../gopl/ch2/ch2-07.html">
  
  <a href="../../gopl/ch2/ch2-07.html">
    
                    
                    作用域
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.4" data-path="../../gopl/ch3/ch3.html">
  
  <a href="../../gopl/ch3/ch3.html">
    
                    
                    基础数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.4.1" data-path="../../gopl/ch3/ch3-01.html">
  
  <a href="../../gopl/ch3/ch3-01.html">
    
                    
                    整型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.2" data-path="../../gopl/ch3/ch3-02.html">
  
  <a href="../../gopl/ch3/ch3-02.html">
    
                    
                    浮点数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.3" data-path="../../gopl/ch3/ch3-03.html">
  
  <a href="../../gopl/ch3/ch3-03.html">
    
                    
                    复数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.4" data-path="../../gopl/ch3/ch3-04.html">
  
  <a href="../../gopl/ch3/ch3-04.html">
    
                    
                    布尔型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.5" data-path="../../gopl/ch3/ch3-05.html">
  
  <a href="../../gopl/ch3/ch3-05.html">
    
                    
                    字符串
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.6" data-path="../../gopl/ch3/ch3-06.html">
  
  <a href="../../gopl/ch3/ch3-06.html">
    
                    
                    常量
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.5" data-path="../../gopl/ch4/ch4.html">
  
  <a href="../../gopl/ch4/ch4.html">
    
                    
                    复合数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.5.1" data-path="../../gopl/ch4/ch4-01.html">
  
  <a href="../../gopl/ch4/ch4-01.html">
    
                    
                    数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.2" data-path="../../gopl/ch4/ch4-02.html">
  
  <a href="../../gopl/ch4/ch4-02.html">
    
                    
                    Slice
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.3" data-path="../../gopl/ch4/ch4-03.html">
  
  <a href="../../gopl/ch4/ch4-03.html">
    
                    
                    Map
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.4" data-path="../../gopl/ch4/ch4-04.html">
  
  <a href="../../gopl/ch4/ch4-04.html">
    
                    
                    结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.5" data-path="../../gopl/ch4/ch4-05.html">
  
  <a href="../../gopl/ch4/ch4-05.html">
    
                    
                    JSON
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.6" data-path="../../gopl/ch4/ch4-06.html">
  
  <a href="../../gopl/ch4/ch4-06.html">
    
                    
                    文本和HTML模板
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.6" data-path="../../gopl/ch5/ch5.html">
  
  <a href="../../gopl/ch5/ch5.html">
    
                    
                    函数
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.6.1" data-path="../../gopl/ch5/ch5-01.html">
  
  <a href="../../gopl/ch5/ch5-01.html">
    
                    
                    函数声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.2" data-path="../../gopl/ch5/ch5-02.html">
  
  <a href="../../gopl/ch5/ch5-02.html">
    
                    
                    递归
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.3" data-path="../../gopl/ch5/ch5-03.html">
  
  <a href="../../gopl/ch5/ch5-03.html">
    
                    
                    多返回值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.4" data-path="../../gopl/ch5/ch5-04.html">
  
  <a href="../../gopl/ch5/ch5-04.html">
    
                    
                    错误
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.5" data-path="../../gopl/ch5/ch5-05.html">
  
  <a href="../../gopl/ch5/ch5-05.html">
    
                    
                    函数值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.6" data-path="../../gopl/ch5/ch5-06.html">
  
  <a href="../../gopl/ch5/ch5-06.html">
    
                    
                    匿名函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.7" data-path="../../gopl/ch5/ch5-07.html">
  
  <a href="../../gopl/ch5/ch5-07.html">
    
                    
                    可变参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.8" data-path="../../gopl/ch5/ch5-08.html">
  
  <a href="../../gopl/ch5/ch5-08.html">
    
                    
                    Deferred函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.9" data-path="../../gopl/ch5/ch5-09.html">
  
  <a href="../../gopl/ch5/ch5-09.html">
    
                    
                    Panic异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.10" data-path="../../gopl/ch5/ch5-10.html">
  
  <a href="../../gopl/ch5/ch5-10.html">
    
                    
                    Recover捕获异常
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.7" data-path="../../gopl/ch6/ch6.html">
  
  <a href="../../gopl/ch6/ch6.html">
    
                    
                    方法
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.7.1" data-path="../../gopl/ch6/ch6-01.html">
  
  <a href="../../gopl/ch6/ch6-01.html">
    
                    
                    方法声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.2" data-path="../../gopl/ch6/ch6-02.html">
  
  <a href="../../gopl/ch6/ch6-02.html">
    
                    
                    基于指针对象的方法
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.3" data-path="../../gopl/ch6/ch6-03.html">
  
  <a href="../../gopl/ch6/ch6-03.html">
    
                    
                    通过嵌入结构体来扩展类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.4" data-path="../../gopl/ch6/ch6-04.html">
  
  <a href="../../gopl/ch6/ch6-04.html">
    
                    
                    方法值和方法表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.5" data-path="../../gopl/ch6/ch6-05.html">
  
  <a href="../../gopl/ch6/ch6-05.html">
    
                    
                    示例: Bit数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.6" data-path="../../gopl/ch6/ch6-06.html">
  
  <a href="../../gopl/ch6/ch6-06.html">
    
                    
                    封装
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.8" data-path="../../gopl/ch7/ch7.html">
  
  <a href="../../gopl/ch7/ch7.html">
    
                    
                    接口
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.8.1" data-path="../../gopl/ch7/ch7-01.html">
  
  <a href="../../gopl/ch7/ch7-01.html">
    
                    
                    接口是合约
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.2" data-path="../../gopl/ch7/ch7-02.html">
  
  <a href="../../gopl/ch7/ch7-02.html">
    
                    
                    接口类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.3" data-path="../../gopl/ch7/ch7-03.html">
  
  <a href="../../gopl/ch7/ch7-03.html">
    
                    
                    实现接口的条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.4" data-path="../../gopl/ch7/ch7-04.html">
  
  <a href="../../gopl/ch7/ch7-04.html">
    
                    
                    flag.Value接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.5" data-path="../../gopl/ch7/ch7-05.html">
  
  <a href="../../gopl/ch7/ch7-05.html">
    
                    
                    接口值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.6" data-path="../../gopl/ch7/ch7-06.html">
  
  <a href="../../gopl/ch7/ch7-06.html">
    
                    
                    sort.Interface接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.7" data-path="../../gopl/ch7/ch7-07.html">
  
  <a href="../../gopl/ch7/ch7-07.html">
    
                    
                    http.Handler接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.8" data-path="../../gopl/ch7/ch7-08.html">
  
  <a href="../../gopl/ch7/ch7-08.html">
    
                    
                    error接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.9" data-path="../../gopl/ch7/ch7-09.html">
  
  <a href="../../gopl/ch7/ch7-09.html">
    
                    
                    示例: 表达式求值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.10" data-path="../../gopl/ch7/ch7-10.html">
  
  <a href="../../gopl/ch7/ch7-10.html">
    
                    
                    类型断言
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.11" data-path="../../gopl/ch7/ch7-11.html">
  
  <a href="../../gopl/ch7/ch7-11.html">
    
                    
                    基于类型断言识别错误类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.12" data-path="../../gopl/ch7/ch7-12.html">
  
  <a href="../../gopl/ch7/ch7-12.html">
    
                    
                    通过类型断言查询接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.13" data-path="../../gopl/ch7/ch7-13.html">
  
  <a href="../../gopl/ch7/ch7-13.html">
    
                    
                    类型分支
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.14" data-path="../../gopl/ch7/ch7-14.html">
  
  <a href="../../gopl/ch7/ch7-14.html">
    
                    
                    示例: 基于标记的XML解码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.15" data-path="../../gopl/ch7/ch7-15.html">
  
  <a href="../../gopl/ch7/ch7-15.html">
    
                    
                    补充几点
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.9" data-path="../../gopl/ch8/ch8.html">
  
  <a href="../../gopl/ch8/ch8.html">
    
                    
                    Goroutines和Channels
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.9.1" data-path="../../gopl/ch8/ch8-01.html">
  
  <a href="../../gopl/ch8/ch8-01.html">
    
                    
                    Goroutines
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.2" data-path="../../gopl/ch8/ch8-02.html">
  
  <a href="../../gopl/ch8/ch8-02.html">
    
                    
                    示例: 并发的Clock服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.3" data-path="../../gopl/ch8/ch8-03.html">
  
  <a href="../../gopl/ch8/ch8-03.html">
    
                    
                    示例: 并发的Echo服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.4" data-path="../../gopl/ch8/ch8-04.html">
  
  <a href="../../gopl/ch8/ch8-04.html">
    
                    
                    Channels
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.5" data-path="../../gopl/ch8/ch8-05.html">
  
  <a href="../../gopl/ch8/ch8-05.html">
    
                    
                    并发的循环
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.6" data-path="../../gopl/ch8/ch8-06.html">
  
  <a href="../../gopl/ch8/ch8-06.html">
    
                    
                    示例: 并发的Web爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.7" data-path="../../gopl/ch8/ch8-07.html">
  
  <a href="../../gopl/ch8/ch8-07.html">
    
                    
                    基于select的多路复用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.8" data-path="../../gopl/ch8/ch8-08.html">
  
  <a href="../../gopl/ch8/ch8-08.html">
    
                    
                    示例: 并发的目录遍历
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.9" data-path="../../gopl/ch8/ch8-09.html">
  
  <a href="../../gopl/ch8/ch8-09.html">
    
                    
                    并发的退出
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.10" data-path="../../gopl/ch8/ch8-10.html">
  
  <a href="../../gopl/ch8/ch8-10.html">
    
                    
                    示例: 聊天服务
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.10" data-path="../../gopl/ch9/ch9.html">
  
  <a href="../../gopl/ch9/ch9.html">
    
                    
                    基于共享变量的并发
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.10.1" data-path="../../gopl/ch9/ch9-01.html">
  
  <a href="../../gopl/ch9/ch9-01.html">
    
                    
                    竞争条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.2" data-path="../../gopl/ch9/ch9-02.html">
  
  <a href="../../gopl/ch9/ch9-02.html">
    
                    
                    sync.Mutex互斥锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.3" data-path="../../gopl/ch9/ch9-03.html">
  
  <a href="../../gopl/ch9/ch9-03.html">
    
                    
                    sync.RWMutex读写锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.4" data-path="../../gopl/ch9/ch9-04.html">
  
  <a href="../../gopl/ch9/ch9-04.html">
    
                    
                    内存同步
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.5" data-path="../../gopl/ch9/ch9-05.html">
  
  <a href="../../gopl/ch9/ch9-05.html">
    
                    
                    sync.Once惰性初始化
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.6" data-path="../../gopl/ch9/ch9-06.html">
  
  <a href="../../gopl/ch9/ch9-06.html">
    
                    
                    竞争条件检测
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.7" data-path="../../gopl/ch9/ch9-07.html">
  
  <a href="../../gopl/ch9/ch9-07.html">
    
                    
                    示例: 并发的非阻塞缓存
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.8" data-path="../../gopl/ch9/ch9-08.html">
  
  <a href="../../gopl/ch9/ch9-08.html">
    
                    
                    Goroutines和线程
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.11" data-path="../../gopl/ch10/ch10.html">
  
  <a href="../../gopl/ch10/ch10.html">
    
                    
                    包和工具
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.11.1" data-path="../../gopl/ch10/ch10-01.html">
  
  <a href="../../gopl/ch10/ch10-01.html">
    
                    
                    包简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.2" data-path="../../gopl/ch10/ch10-02.html">
  
  <a href="../../gopl/ch10/ch10-02.html">
    
                    
                    导入路径
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.3" data-path="../../gopl/ch10/ch10-03.html">
  
  <a href="../../gopl/ch10/ch10-03.html">
    
                    
                    包声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.4" data-path="../../gopl/ch10/ch10-04.html">
  
  <a href="../../gopl/ch10/ch10-04.html">
    
                    
                    导入声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.5" data-path="../../gopl/ch10/ch10-05.html">
  
  <a href="../../gopl/ch10/ch10-05.html">
    
                    
                    包的匿名导入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.6" data-path="../../gopl/ch10/ch10-06.html">
  
  <a href="../../gopl/ch10/ch10-06.html">
    
                    
                    包和命名
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.7" data-path="../../gopl/ch10/ch10-07.html">
  
  <a href="../../gopl/ch10/ch10-07.html">
    
                    
                    工具
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.12" data-path="../../gopl/ch11/ch11.html">
  
  <a href="../../gopl/ch11/ch11.html">
    
                    
                    测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.12.1" data-path="../../gopl/ch11/ch11-01.html">
  
  <a href="../../gopl/ch11/ch11-01.html">
    
                    
                    go test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.2" data-path="../../gopl/ch11/ch11-02.html">
  
  <a href="../../gopl/ch11/ch11-02.html">
    
                    
                    测试函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.3" data-path="../../gopl/ch11/ch11-03.html">
  
  <a href="../../gopl/ch11/ch11-03.html">
    
                    
                    测试覆盖率
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.4" data-path="../../gopl/ch11/ch11-04.html">
  
  <a href="../../gopl/ch11/ch11-04.html">
    
                    
                    基准测试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.5" data-path="../../gopl/ch11/ch11-05.html">
  
  <a href="../../gopl/ch11/ch11-05.html">
    
                    
                    剖析
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.6" data-path="../../gopl/ch11/ch11-06.html">
  
  <a href="../../gopl/ch11/ch11-06.html">
    
                    
                    示例函数
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.13" data-path="../../gopl/ch12/ch12.html">
  
  <a href="../../gopl/ch12/ch12.html">
    
                    
                    反射
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.13.1" data-path="../../gopl/ch12/ch12-01.html">
  
  <a href="../../gopl/ch12/ch12-01.html">
    
                    
                    为何需要反射?
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.2" data-path="../../gopl/ch12/ch12-02.html">
  
  <a href="../../gopl/ch12/ch12-02.html">
    
                    
                    reflect.Type和reflect.Value
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.3" data-path="../../gopl/ch12/ch12-03.html">
  
  <a href="../../gopl/ch12/ch12-03.html">
    
                    
                    Display递归打印
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.4" data-path="../../gopl/ch12/ch12-04.html">
  
  <a href="../../gopl/ch12/ch12-04.html">
    
                    
                    示例: 编码S表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.5" data-path="../../gopl/ch12/ch12-05.html">
  
  <a href="../../gopl/ch12/ch12-05.html">
    
                    
                    通过reflect.Value修改值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.6" data-path="../../gopl/ch12/ch12-06.html">
  
  <a href="../../gopl/ch12/ch12-06.html">
    
                    
                    示例: 解码S表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.7" data-path="../../gopl/ch12/ch12-07.html">
  
  <a href="../../gopl/ch12/ch12-07.html">
    
                    
                    获取结构体字段标签
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.8" data-path="../../gopl/ch12/ch12-08.html">
  
  <a href="../../gopl/ch12/ch12-08.html">
    
                    
                    显示一个类型的方法集
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.9" data-path="../../gopl/ch12/ch12-09.html">
  
  <a href="../../gopl/ch12/ch12-09.html">
    
                    
                    几点忠告
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.14" data-path="../../gopl/ch13/ch13.html">
  
  <a href="../../gopl/ch13/ch13.html">
    
                    
                    底层编程
            
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<li class="chapter " data-level="1.3.14.1" data-path="../../gopl/ch13/ch13-01.html">
  
  <a href="../../gopl/ch13/ch13-01.html">
    
                    
                    unsafe.Sizeof, Alignof 和 Offsetof
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.2" data-path="../../gopl/ch13/ch13-02.html">
  
  <a href="../../gopl/ch13/ch13-02.html">
    
                    
                    unsafe.Pointer
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.3" data-path="../../gopl/ch13/ch13-03.html">
  
  <a href="../../gopl/ch13/ch13-03.html">
    
                    
                    示例: 深度相等判断
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.4" data-path="../../gopl/ch13/ch13-04.html">
  
  <a href="../../gopl/ch13/ch13-04.html">
    
                    
                    通过cgo调用C代码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.14.5" data-path="../../gopl/ch13/ch13-05.html">
  
  <a href="../../gopl/ch13/ch13-05.html">
    
                    
                    几点忠告
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.15" data-path="../../gopl/appendix/appendix.html">
  
  <a href="../../gopl/appendix/appendix.html">
    
                    
                    附录
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.15.1" data-path="../../gopl/appendix/appendix-a-errata.html">
  
  <a href="../../gopl/appendix/appendix-a-errata.html">
    
                    
                    附录A：原文勘误
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.2" data-path="../../gopl/appendix/appendix-b-author.html">
  
  <a href="../../gopl/appendix/appendix-b-author.html">
    
                    
                    附录B：作者译者
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.3" data-path="../../gopl/appendix/appendix-c-cpoyright.html">
  
  <a href="../../gopl/appendix/appendix-c-cpoyright.html">
    
                    
                    附录C：译文授权
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.15.4" data-path="../../gopl/appendix/appendix-d-translations.html">
  
  <a href="../../gopl/appendix/appendix-d-translations.html">
    
                    
                    附录D：其它语言
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4" data-path="../../build-web-application-with-golang/">
  
  <a href="../../build-web-application-with-golang/">
    
                    
                    Go Web 编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.1" data-path="../../build-web-application-with-golang/01.0.html">
  
  <a href="../../build-web-application-with-golang/01.0.html">
    
                    
                    Go环境配置
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.1.1" data-path="../../build-web-application-with-golang/01.1.html">
  
  <a href="../../build-web-application-with-golang/01.1.html">
    
                    
                    Go安装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.2" data-path="../../build-web-application-with-golang/01.2.html">
  
  <a href="../../build-web-application-with-golang/01.2.html">
    
                    
                    GOPATH 与工作空间
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.3" data-path="../../build-web-application-with-golang/01.3.html">
  
  <a href="../../build-web-application-with-golang/01.3.html">
    
                    
                    Go 命令
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.4" data-path="../../build-web-application-with-golang/01.4.html">
  
  <a href="../../build-web-application-with-golang/01.4.html">
    
                    
                    Go开发工具
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.1.5" data-path="../../build-web-application-with-golang/01.5.html">
  
  <a href="../../build-web-application-with-golang/01.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.2" data-path="../../build-web-application-with-golang/02.0.html">
  
  <a href="../../build-web-application-with-golang/02.0.html">
    
                    
                    Go语言基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.2.1" data-path="../../build-web-application-with-golang/02.1.html">
  
  <a href="../../build-web-application-with-golang/02.1.html">
    
                    
                    你好，Go
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.2" data-path="../../build-web-application-with-golang/02.2.html">
  
  <a href="../../build-web-application-with-golang/02.2.html">
    
                    
                    Go基础
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.3" data-path="../../build-web-application-with-golang/02.3.html">
  
  <a href="../../build-web-application-with-golang/02.3.html">
    
                    
                    流程和函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.4" data-path="../../build-web-application-with-golang/02.4.html">
  
  <a href="../../build-web-application-with-golang/02.4.html">
    
                    
                    struct
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.5" data-path="../../build-web-application-with-golang/02.5.html">
  
  <a href="../../build-web-application-with-golang/02.5.html">
    
                    
                    面向对象
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.6" data-path="../../build-web-application-with-golang/02.6.html">
  
  <a href="../../build-web-application-with-golang/02.6.html">
    
                    
                    interface
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.7" data-path="../../build-web-application-with-golang/02.7.html">
  
  <a href="../../build-web-application-with-golang/02.7.html">
    
                    
                    并发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.2.8" data-path="../../build-web-application-with-golang/02.8.html">
  
  <a href="../../build-web-application-with-golang/02.8.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.3" data-path="../../build-web-application-with-golang/03.0.html">
  
  <a href="../../build-web-application-with-golang/03.0.html">
    
                    
                    Web基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.3.1" data-path="../../build-web-application-with-golang/03.1.html">
  
  <a href="../../build-web-application-with-golang/03.1.html">
    
                    
                    web工作方式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.2" data-path="../../build-web-application-with-golang/03.2.html">
  
  <a href="../../build-web-application-with-golang/03.2.html">
    
                    
                    Go搭建一个简单的web服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.3" data-path="../../build-web-application-with-golang/03.3.html">
  
  <a href="../../build-web-application-with-golang/03.3.html">
    
                    
                    Go如何使得web工作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.4" data-path="../../build-web-application-with-golang/03.4.html">
  
  <a href="../../build-web-application-with-golang/03.4.html">
    
                    
                    Go的http包详解
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.3.5" data-path="../../build-web-application-with-golang/03.5.html">
  
  <a href="../../build-web-application-with-golang/03.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.4" data-path="../../build-web-application-with-golang/04.0.html">
  
  <a href="../../build-web-application-with-golang/04.0.html">
    
                    
                    表单
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.4.1" data-path="../../build-web-application-with-golang/04.1.html">
  
  <a href="../../build-web-application-with-golang/04.1.html">
    
                    
                    处理表单的输入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.2" data-path="../../build-web-application-with-golang/04.2.html">
  
  <a href="../../build-web-application-with-golang/04.2.html">
    
                    
                    验证表单的输入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.3" data-path="../../build-web-application-with-golang/04.3.html">
  
  <a href="../../build-web-application-with-golang/04.3.html">
    
                    
                    预防跨站脚本
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.4" data-path="../../build-web-application-with-golang/04.4.html">
  
  <a href="../../build-web-application-with-golang/04.4.html">
    
                    
                    防止多次递交表单
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.5" data-path="../../build-web-application-with-golang/04.5.html">
  
  <a href="../../build-web-application-with-golang/04.5.html">
    
                    
                    处理文件上传
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.4.6" data-path="../../build-web-application-with-golang/04.6.html">
  
  <a href="../../build-web-application-with-golang/04.6.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.5" data-path="../../build-web-application-with-golang/05.0.html">
  
  <a href="../../build-web-application-with-golang/05.0.html">
    
                    
                    访问数据库
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.5.1" data-path="../../build-web-application-with-golang/05.1.html">
  
  <a href="../../build-web-application-with-golang/05.1.html">
    
                    
                    database/sql接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.2" data-path="../../build-web-application-with-golang/05.2.html">
  
  <a href="../../build-web-application-with-golang/05.2.html">
    
                    
                    使用MySQL数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.3" data-path="../../build-web-application-with-golang/05.3.html">
  
  <a href="../../build-web-application-with-golang/05.3.html">
    
                    
                    使用SQLite数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.4" data-path="../../build-web-application-with-golang/05.4.html">
  
  <a href="../../build-web-application-with-golang/05.4.html">
    
                    
                    使用PostgreSQL数据库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.5" data-path="../../build-web-application-with-golang/05.5.html">
  
  <a href="../../build-web-application-with-golang/05.5.html">
    
                    
                    使用beedb库进行ORM开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.6" data-path="../../build-web-application-with-golang/05.6.html">
  
  <a href="../../build-web-application-with-golang/05.6.html">
    
                    
                    NOSQL数据库操作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.7" data-path="../../build-web-application-with-golang/05.7.html">
  
  <a href="../../build-web-application-with-golang/05.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.6" data-path="../../build-web-application-with-golang/06.0.html">
  
  <a href="../../build-web-application-with-golang/06.0.html">
    
                    
                    session和数据存储
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.6.1" data-path="../../build-web-application-with-golang/06.1.html">
  
  <a href="../../build-web-application-with-golang/06.1.html">
    
                    
                    session和cookie
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.2" data-path="../../build-web-application-with-golang/06.2.html">
  
  <a href="../../build-web-application-with-golang/06.2.html">
    
                    
                    Go如何使用session
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.3" data-path="../../build-web-application-with-golang/06.3.html">
  
  <a href="../../build-web-application-with-golang/06.3.html">
    
                    
                    session存储
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.4" data-path="../../build-web-application-with-golang/06.4.html">
  
  <a href="../../build-web-application-with-golang/06.4.html">
    
                    
                    预防session劫持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.6.5" data-path="../../build-web-application-with-golang/06.5.html">
  
  <a href="../../build-web-application-with-golang/06.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.7" data-path="../../build-web-application-with-golang/07.0.html">
  
  <a href="../../build-web-application-with-golang/07.0.html">
    
                    
                    文本文件处理
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.7.1" data-path="../../build-web-application-with-golang/07.1.html">
  
  <a href="../../build-web-application-with-golang/07.1.html">
    
                    
                    XML处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.2" data-path="../../build-web-application-with-golang/07.2.html">
  
  <a href="../../build-web-application-with-golang/07.2.html">
    
                    
                    JSON处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.3" data-path="../../build-web-application-with-golang/07.3.html">
  
  <a href="../../build-web-application-with-golang/07.3.html">
    
                    
                    正则处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.4" data-path="../../build-web-application-with-golang/07.4.html">
  
  <a href="../../build-web-application-with-golang/07.4.html">
    
                    
                    模板处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.5" data-path="../../build-web-application-with-golang/07.5.html">
  
  <a href="../../build-web-application-with-golang/07.5.html">
    
                    
                    文件操作
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.6" data-path="../../build-web-application-with-golang/07.6.html">
  
  <a href="../../build-web-application-with-golang/07.6.html">
    
                    
                    字符串处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.7.7" data-path="../../build-web-application-with-golang/07.7.html">
  
  <a href="../../build-web-application-with-golang/07.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.8" data-path="../../build-web-application-with-golang/08.0.html">
  
  <a href="../../build-web-application-with-golang/08.0.html">
    
                    
                    Web服务
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.8.1" data-path="../../build-web-application-with-golang/08.1.html">
  
  <a href="../../build-web-application-with-golang/08.1.html">
    
                    
                    Socket编程
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.2" data-path="../../build-web-application-with-golang/08.2.html">
  
  <a href="../../build-web-application-with-golang/08.2.html">
    
                    
                    WebSocket
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.3" data-path="../../build-web-application-with-golang/08.3.html">
  
  <a href="../../build-web-application-with-golang/08.3.html">
    
                    
                    REST
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.4" data-path="../../build-web-application-with-golang/08.4.html">
  
  <a href="../../build-web-application-with-golang/08.4.html">
    
                    
                    RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.5" data-path="../../build-web-application-with-golang/08.5.html">
  
  <a href="../../build-web-application-with-golang/08.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.9" data-path="../../build-web-application-with-golang/09.0.html">
  
  <a href="../../build-web-application-with-golang/09.0.html">
    
                    
                    安全与加密
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.9.1" data-path="../../build-web-application-with-golang/09.1.html">
  
  <a href="../../build-web-application-with-golang/09.1.html">
    
                    
                    预防CSRF攻击
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.2" data-path="../../build-web-application-with-golang/09.2.html">
  
  <a href="../../build-web-application-with-golang/09.2.html">
    
                    
                    确保输入过滤
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.3" data-path="../../build-web-application-with-golang/09.3.html">
  
  <a href="../../build-web-application-with-golang/09.3.html">
    
                    
                    避免XSS攻击
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.4" data-path="../../build-web-application-with-golang/09.4.html">
  
  <a href="../../build-web-application-with-golang/09.4.html">
    
                    
                    避免SQL注入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.5" data-path="../../build-web-application-with-golang/09.5.html">
  
  <a href="../../build-web-application-with-golang/09.5.html">
    
                    
                    存储密码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.6" data-path="../../build-web-application-with-golang/09.6.html">
  
  <a href="../../build-web-application-with-golang/09.6.html">
    
                    
                    加密和解密数据
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.9.7" data-path="../../build-web-application-with-golang/09.7.html">
  
  <a href="../../build-web-application-with-golang/09.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.10" data-path="../../build-web-application-with-golang/10.0.html">
  
  <a href="../../build-web-application-with-golang/10.0.html">
    
                    
                    国际化和本地化
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.10.1" data-path="../../build-web-application-with-golang/10.1.html">
  
  <a href="../../build-web-application-with-golang/10.1.html">
    
                    
                    设置默认地区
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.2" data-path="../../build-web-application-with-golang/10.2.html">
  
  <a href="../../build-web-application-with-golang/10.2.html">
    
                    
                    本地化资源
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.3" data-path="../../build-web-application-with-golang/10.3.html">
  
  <a href="../../build-web-application-with-golang/10.3.html">
    
                    
                    国际化站点
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.10.4" data-path="../../build-web-application-with-golang/10.4.html">
  
  <a href="../../build-web-application-with-golang/10.4.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.11" data-path="../../build-web-application-with-golang/11.0.html">
  
  <a href="../../build-web-application-with-golang/11.0.html">
    
                    
                    错误处理，调试和测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.11.1" data-path="../../build-web-application-with-golang/11.1.html">
  
  <a href="../../build-web-application-with-golang/11.1.html">
    
                    
                    错误处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.2" data-path="../../build-web-application-with-golang/11.2.html">
  
  <a href="../../build-web-application-with-golang/11.2.html">
    
                    
                    使用GDB调试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.3" data-path="../../build-web-application-with-golang/11.3.html">
  
  <a href="../../build-web-application-with-golang/11.3.html">
    
                    
                    Go怎么写测试用例
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.11.4" data-path="../../build-web-application-with-golang/11.4.html">
  
  <a href="../../build-web-application-with-golang/11.4.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.12" data-path="../../build-web-application-with-golang/12.0.html">
  
  <a href="../../build-web-application-with-golang/12.0.html">
    
                    
                    部署与维护
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.12.1" data-path="../../build-web-application-with-golang/12.1.html">
  
  <a href="../../build-web-application-with-golang/12.1.html">
    
                    
                    应用日志
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.2" data-path="../../build-web-application-with-golang/12.2.html">
  
  <a href="../../build-web-application-with-golang/12.2.html">
    
                    
                    网站错误处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.3" data-path="../../build-web-application-with-golang/12.3.html">
  
  <a href="../../build-web-application-with-golang/12.3.html">
    
                    
                    应用部署
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.4" data-path="../../build-web-application-with-golang/12.4.html">
  
  <a href="../../build-web-application-with-golang/12.4.html">
    
                    
                    备份和恢复
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.12.5" data-path="../../build-web-application-with-golang/12.5.html">
  
  <a href="../../build-web-application-with-golang/12.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.13" data-path="../../build-web-application-with-golang/13.0.html">
  
  <a href="../../build-web-application-with-golang/13.0.html">
    
                    
                    如何设计一个Web框架
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.13.1" data-path="../../build-web-application-with-golang/13.1.html">
  
  <a href="../../build-web-application-with-golang/13.1.html">
    
                    
                    项目规划
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.2" data-path="../../build-web-application-with-golang/13.2.html">
  
  <a href="../../build-web-application-with-golang/13.2.html">
    
                    
                    自定义路由器设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.3" data-path="../../build-web-application-with-golang/13.3.html">
  
  <a href="../../build-web-application-with-golang/13.3.html">
    
                    
                    controller设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.4" data-path="../../build-web-application-with-golang/13.4.html">
  
  <a href="../../build-web-application-with-golang/13.4.html">
    
                    
                    日志和配置设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.5" data-path="../../build-web-application-with-golang/13.5.html">
  
  <a href="../../build-web-application-with-golang/13.5.html">
    
                    
                    实现博客的增删改
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.6" data-path="../../build-web-application-with-golang/13.6.html">
  
  <a href="../../build-web-application-with-golang/13.6.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.14" data-path="../../build-web-application-with-golang/14.0.html">
  
  <a href="../../build-web-application-with-golang/14.0.html">
    
                    
                    扩展Web框架
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.14.1" data-path="../../build-web-application-with-golang/14.1.html">
  
  <a href="../../build-web-application-with-golang/14.1.html">
    
                    
                    静态文件支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.2" data-path="../../build-web-application-with-golang/14.2.html">
  
  <a href="../../build-web-application-with-golang/14.2.html">
    
                    
                    Session支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.3" data-path="../../build-web-application-with-golang/14.3.html">
  
  <a href="../../build-web-application-with-golang/14.3.html">
    
                    
                    表单支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.4" data-path="../../build-web-application-with-golang/14.4.html">
  
  <a href="../../build-web-application-with-golang/14.4.html">
    
                    
                    用户认证
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.5" data-path="../../build-web-application-with-golang/14.5.html">
  
  <a href="../../build-web-application-with-golang/14.5.html">
    
                    
                    多语言支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.6" data-path="../../build-web-application-with-golang/14.6.html">
  
  <a href="../../build-web-application-with-golang/14.6.html">
    
                    
                    pprof支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.7" data-path="../../build-web-application-with-golang/14.7.html">
  
  <a href="../../build-web-application-with-golang/14.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.15" data-path="../../build-web-application-with-golang/ref.html">
  
  <a href="../../build-web-application-with-golang/ref.html">
    
                    
                    参考资料
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5" data-path="../">
  
  <a href="../">
    
                    
                    Go语言高级编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1" data-path="readme.html">
  
  <a href="readme.html">
    
                    
                    第1章 语言基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1.1" data-path="ch1-01-genesis.html">
  
  <a href="ch1-01-genesis.html">
    
                    
                    1.1 Go语言创世纪
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.2" data-path="ch1-02-hello-revolution.html">
  
  <a href="ch1-02-hello-revolution.html">
    
                    
                    1.2 Hello, World 的革命
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.3" data-path="ch1-03-array-string-and-slice.html">
  
  <a href="ch1-03-array-string-and-slice.html">
    
                    
                    1.3 数组、字符串和切片
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.4" data-path="ch1-04-func-method-interface.html">
  
  <a href="ch1-04-func-method-interface.html">
    
                    
                    1.4 函数、方法和接口
            
    </a>
    

    
</li>

<li class="chapter active" data-level="1.5.1.5" data-path="ch1-05-mem.html">
  
  <a href="ch1-05-mem.html">
    
                    
                    1.5 面向并发的内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.6" data-path="ch1-06-goroutine.html">
  
  <a href="ch1-06-goroutine.html">
    
                    
                    1.6 常见的并发模式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.7" data-path="ch1-07-error-and-panic.html">
  
  <a href="ch1-07-error-and-panic.html">
    
                    
                    1.7 错误和异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.8" data-path="ch1-08-ext.html">
  
  <a href="ch1-08-ext.html">
    
                    
                    1.8 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.2" data-path="../ch2-cgo/readme.html">
  
  <a href="../ch2-cgo/readme.html">
    
                    
                    第2章 CGO编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.2.1" data-path="../ch2-cgo/ch2-01-hello-cgo.html">
  
  <a href="../ch2-cgo/ch2-01-hello-cgo.html">
    
                    
                    2.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.2" data-path="../ch2-cgo/ch2-02-basic.html">
  
  <a href="../ch2-cgo/ch2-02-basic.html">
    
                    
                    2.2 CGO基础
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.3" data-path="../ch2-cgo/ch2-03-cgo-types.html">
  
  <a href="../ch2-cgo/ch2-03-cgo-types.html">
    
                    
                    2.3 类型转换
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.4" data-path="../ch2-cgo/ch2-04-func.html">
  
  <a href="../ch2-cgo/ch2-04-func.html">
    
                    
                    2.4 函数调用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.5" data-path="../ch2-cgo/ch2-05-internal.html">
  
  <a href="../ch2-cgo/ch2-05-internal.html">
    
                    
                    2.5 内部机制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.6" data-path="../ch2-cgo/ch2-06-qsort.html">
  
  <a href="../ch2-cgo/ch2-06-qsort.html">
    
                    
                    2.6 实战: 封装qsort
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.7" data-path="../ch2-cgo/ch2-07-memory.html">
  
  <a href="../ch2-cgo/ch2-07-memory.html">
    
                    
                    2.7 CGO内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.8" data-path="../ch2-cgo/ch2-08-class.html">
  
  <a href="../ch2-cgo/ch2-08-class.html">
    
                    
                    2.8 C++类包装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.9" data-path="../ch2-cgo/ch2-09-static-shared-lib.html">
  
  <a href="../ch2-cgo/ch2-09-static-shared-lib.html">
    
                    
                    2.9 静态库和动态库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.10" data-path="../ch2-cgo/ch2-10-link.html">
  
  <a href="../ch2-cgo/ch2-10-link.html">
    
                    
                    2.10 编译和链接参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.11" data-path="../ch2-cgo/ch2-11-ext.html">
  
  <a href="../ch2-cgo/ch2-11-ext.html">
    
                    
                    2.11 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.3" data-path="../ch3-asm/readme.html">
  
  <a href="../ch3-asm/readme.html">
    
                    
                    第3章 汇编语言
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.3.1" data-path="../ch3-asm/ch3-01-basic.html">
  
  <a href="../ch3-asm/ch3-01-basic.html">
    
                    
                    3.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.2" data-path="../ch3-asm/ch3-02-arch.html">
  
  <a href="../ch3-asm/ch3-02-arch.html">
    
                    
                    3.2 计算机结构
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.3" data-path="../ch3-asm/ch3-03-const-and-var.html">
  
  <a href="../ch3-asm/ch3-03-const-and-var.html">
    
                    
                    3.3 常量和全局变量
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.4" data-path="../ch3-asm/ch3-04-func.html">
  
  <a href="../ch3-asm/ch3-04-func.html">
    
                    
                    3.4 函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.5" data-path="../ch3-asm/ch3-05-control-flow.html">
  
  <a href="../ch3-asm/ch3-05-control-flow.html">
    
                    
                    3.5 控制流
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.6" data-path="../ch3-asm/ch3-06-func-again.html">
  
  <a href="../ch3-asm/ch3-06-func-again.html">
    
                    
                    3.6 再论函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.7" data-path="../ch3-asm/ch3-07-hack-asm.html">
  
  <a href="../ch3-asm/ch3-07-hack-asm.html">
    
                    
                    3.7 汇编语言的威力
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.8" data-path="../ch3-asm/ch3-08-goroutine-id.html">
  
  <a href="../ch3-asm/ch3-08-goroutine-id.html">
    
                    
                    3.8 例子：Goroutine ID
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.9" data-path="../ch3-asm/ch3-09-debug.html">
  
  <a href="../ch3-asm/ch3-09-debug.html">
    
                    
                    3.9 Delve调试器
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.10" data-path="../ch3-asm/ch3-10-ext.html">
  
  <a href="../ch3-asm/ch3-10-ext.html">
    
                    
                    3.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.4" data-path="../ch4-rpc/readme.html">
  
  <a href="../ch4-rpc/readme.html">
    
                    
                    第4章 RPC和Protobuf
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.4.1" data-path="../ch4-rpc/ch4-01-rpc-intro.html">
  
  <a href="../ch4-rpc/ch4-01-rpc-intro.html">
    
                    
                    4.1 RPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.2" data-path="../ch4-rpc/ch4-02-pb-intro.html">
  
  <a href="../ch4-rpc/ch4-02-pb-intro.html">
    
                    
                    4.2 Protobuf
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.3" data-path="../ch4-rpc/ch4-03-netrpc-hack.html">
  
  <a href="../ch4-rpc/ch4-03-netrpc-hack.html">
    
                    
                    4.3 玩转RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.4" data-path="../ch4-rpc/ch4-04-grpc.html">
  
  <a href="../ch4-rpc/ch4-04-grpc.html">
    
                    
                    4.4 GRPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.5" data-path="../ch4-rpc/ch4-05-grpc-hack.html">
  
  <a href="../ch4-rpc/ch4-05-grpc-hack.html">
    
                    
                    4.5 GRPC进阶
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.6" data-path="../ch4-rpc/ch4-06-grpc-ext.html">
  
  <a href="../ch4-rpc/ch4-06-grpc-ext.html">
    
                    
                    4.6 GRPC和Protobuf扩展
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.7" data-path="../ch4-rpc/ch4-07-pbgo.html">
  
  <a href="../ch4-rpc/ch4-07-pbgo.html">
    
                    
                    4.7 pbgo: 基于Protobuf的框架
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.8" data-path="../ch4-rpc/ch4-08-grpcurl.html">
  
  <a href="../ch4-rpc/ch4-08-grpcurl.html">
    
                    
                    4.8 grpcurl工具
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.9" data-path="../ch4-rpc/ch4-09-ext.html">
  
  <a href="../ch4-rpc/ch4-09-ext.html">
    
                    
                    4.9 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.5" data-path="../ch5-web/readme.html">
  
  <a href="../ch5-web/readme.html">
    
                    
                    第5章 Go和Web
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.5.1" data-path="../ch5-web/ch5-01-introduction.html">
  
  <a href="../ch5-web/ch5-01-introduction.html">
    
                    
                    5.1 Web开发简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.2" data-path="../ch5-web/ch5-02-router.html">
  
  <a href="../ch5-web/ch5-02-router.html">
    
                    
                    5.2 Router请求路由
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.3" data-path="../ch5-web/ch5-03-middleware.html">
  
  <a href="../ch5-web/ch5-03-middleware.html">
    
                    
                    5.3 Middleware中间件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.4" data-path="../ch5-web/ch5-04-validator.html">
  
  <a href="../ch5-web/ch5-04-validator.html">
    
                    
                    5.4 Validator请求校验
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.5" data-path="../ch5-web/ch5-05-database.html">
  
  <a href="../ch5-web/ch5-05-database.html">
    
                    
                    5.5 Database和数据库打交道
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.6" data-path="../ch5-web/ch5-06-ratelimit.html">
  
  <a href="../ch5-web/ch5-06-ratelimit.html">
    
                    
                    5.6 Ratelimit 服务流量限制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.7" data-path="../ch5-web/ch5-07-layout-of-web-project.html">
  
  <a href="../ch5-web/ch5-07-layout-of-web-project.html">
    
                    
                    5.7 Layout大型web项目分层
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.8" data-path="../ch5-web/ch5-08-interface-and-web.html">
  
  <a href="../ch5-web/ch5-08-interface-and-web.html">
    
                    
                    5.8 interface 和 table-driven 开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.9" data-path="../ch5-web/ch5-09-gated-launch.html">
  
  <a href="../ch5-web/ch5-09-gated-launch.html">
    
                    
                    5.9 灰度发布和 A/B test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.10" data-path="../ch5-web/ch5-10-ext.html">
  
  <a href="../ch5-web/ch5-10-ext.html">
    
                    
                    5.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.6" data-path="../ch6-cloud/readme.html">
  
  <a href="../ch6-cloud/readme.html">
    
                    
                    第6章 分布式系统
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.6.1" data-path="../ch6-cloud/ch6-01-dist-id.html">
  
  <a href="../ch6-cloud/ch6-01-dist-id.html">
    
                    
                    6.1 分布式 id 生成器
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.2" data-path="../ch6-cloud/ch6-02-lock.html">
  
  <a href="../ch6-cloud/ch6-02-lock.html">
    
                    
                    6.2 分布式锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.3" data-path="../ch6-cloud/ch6-03-delay-job.html">
  
  <a href="../ch6-cloud/ch6-03-delay-job.html">
    
                    
                    6.3 延时任务系统
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.4" data-path="../ch6-cloud/ch6-04-search-engine.html">
  
  <a href="../ch6-cloud/ch6-04-search-engine.html">
    
                    
                    6.4 分布式搜索引擎
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.5" data-path="../ch6-cloud/ch6-05-load-balance.html">
  
  <a href="../ch6-cloud/ch6-05-load-balance.html">
    
                    
                    6.5 负载均衡
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.6" data-path="../ch6-cloud/ch6-06-config.html">
  
  <a href="../ch6-cloud/ch6-06-config.html">
    
                    
                    6.6 分布式配置管理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.7" data-path="../ch6-cloud/ch6-07-crawler.html">
  
  <a href="../ch6-cloud/ch6-07-crawler.html">
    
                    
                    6.7 分布式爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.8" data-path="../ch6-cloud/ch6-08-ext.html">
  
  <a href="../ch6-cloud/ch6-08-ext.html">
    
                    
                    6.8 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.7" data-path="../appendix/readme.html">
  
  <a href="../appendix/readme.html">
    
                    
                    附录
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.7.1" data-path="../appendix/appendix-a-trap.html">
  
  <a href="../appendix/appendix-a-trap.html">
    
                    
                    附录A: Go语言常见坑
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.7.2" data-path="../appendix/appendix-b-gems.html">
  
  <a href="../appendix/appendix-b-gems.html">
    
                    
                    附录B: 有趣的代码片段
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.7.3" data-path="../appendix/appendix-c-author.html">
  
  <a href="../appendix/appendix-c-author.html">
    
                    
                    附录C: 作者简介
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
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                                <h1 id="15-&#x9762;&#x5411;&#x5E76;&#x53D1;&#x7684;&#x5185;&#x5B58;&#x6A21;&#x578B;">1.5 &#x9762;&#x5411;&#x5E76;&#x53D1;&#x7684;&#x5185;&#x5B58;&#x6A21;&#x578B;</h1>
<p>&#x5728;&#x65E9;&#x671F;&#xFF0C;CPU&#x90FD;&#x662F;&#x4EE5;&#x5355;&#x6838;&#x7684;&#x5F62;&#x5F0F;&#x987A;&#x5E8F;&#x6267;&#x884C;&#x673A;&#x5668;&#x6307;&#x4EE4;&#x3002;Go&#x8BED;&#x8A00;&#x7684;&#x7956;&#x5148;C&#x8BED;&#x8A00;&#x6B63;&#x662F;&#x8FD9;&#x79CD;&#x987A;&#x5E8F;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x7684;&#x4EE3;&#x8868;&#x3002;&#x987A;&#x5E8F;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x4E2D;&#x7684;&#x987A;&#x5E8F;&#x662F;&#x6307;&#xFF1A;&#x6240;&#x6709;&#x7684;&#x6307;&#x4EE4;&#x90FD;&#x662F;&#x4EE5;&#x4E32;&#x884C;&#x7684;&#x65B9;&#x5F0F;&#x6267;&#x884C;&#xFF0C;&#x5728;&#x76F8;&#x540C;&#x7684;&#x65F6;&#x523B;&#x6709;&#x4E14;&#x4EC5;&#x6709;&#x4E00;&#x4E2A;CPU&#x5728;&#x987A;&#x5E8F;&#x6267;&#x884C;&#x7A0B;&#x5E8F;&#x7684;&#x6307;&#x4EE4;&#x3002;</p>
<p>&#x968F;&#x7740;&#x5904;&#x7406;&#x5668;&#x6280;&#x672F;&#x7684;&#x53D1;&#x5C55;&#xFF0C;&#x5355;&#x6838;&#x65F6;&#x4EE3;&#x4EE5;&#x63D0;&#x5347;&#x5904;&#x7406;&#x5668;&#x9891;&#x7387;&#x6765;&#x63D0;&#x9AD8;&#x8FD0;&#x884C;&#x6548;&#x7387;&#x7684;&#x65B9;&#x5F0F;&#x9047;&#x5230;&#x4E86;&#x74F6;&#x9888;&#xFF0C;&#x76EE;&#x524D;&#x5404;&#x79CD;&#x4E3B;&#x6D41;&#x7684;CPU&#x9891;&#x7387;&#x57FA;&#x672C;&#x88AB;&#x9501;&#x5B9A;&#x5728;&#x4E86;3GHZ&#x9644;&#x8FD1;&#x3002;&#x5355;&#x6838;CPU&#x7684;&#x53D1;&#x5C55;&#x7684;&#x505C;&#x6EDE;&#xFF0C;&#x7ED9;&#x591A;&#x6838;CPU&#x7684;&#x53D1;&#x5C55;&#x5E26;&#x6765;&#x4E86;&#x673A;&#x9047;&#x3002;&#x76F8;&#x5E94;&#x5730;&#xFF0C;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x4E5F;&#x5F00;&#x59CB;&#x9010;&#x6B65;&#x5411;&#x5E76;&#x884C;&#x5316;&#x7684;&#x65B9;&#x5411;&#x53D1;&#x5C55;&#x3002;Go&#x8BED;&#x8A00;&#x6B63;&#x662F;&#x5728;&#x591A;&#x6838;&#x548C;&#x7F51;&#x7EDC;&#x5316;&#x7684;&#x65F6;&#x4EE3;&#x80CC;&#x666F;&#x4E0B;&#x8BDE;&#x751F;&#x7684;&#x539F;&#x751F;&#x652F;&#x6301;&#x5E76;&#x53D1;&#x7684;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x3002;</p>
<p>&#x5E38;&#x89C1;&#x7684;&#x5E76;&#x884C;&#x7F16;&#x7A0B;&#x6709;&#x591A;&#x79CD;&#x6A21;&#x578B;&#xFF0C;&#x4E3B;&#x8981;&#x6709;&#x591A;&#x7EBF;&#x7A0B;&#x3001;&#x6D88;&#x606F;&#x4F20;&#x9012;&#x7B49;&#x3002;&#x4ECE;&#x7406;&#x8BBA;&#x4E0A;&#x6765;&#x770B;&#xFF0C;&#x591A;&#x7EBF;&#x7A0B;&#x548C;&#x57FA;&#x4E8E;&#x6D88;&#x606F;&#x7684;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x662F;&#x7B49;&#x4EF7;&#x7684;&#x3002;&#x7531;&#x4E8E;&#x591A;&#x7EBF;&#x7A0B;&#x5E76;&#x53D1;&#x6A21;&#x578B;&#x53EF;&#x4EE5;&#x81EA;&#x7136;&#x5BF9;&#x5E94;&#x5230;&#x591A;&#x6838;&#x7684;&#x5904;&#x7406;&#x5668;&#xFF0C;&#x4E3B;&#x6D41;&#x7684;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x56E0;&#x6B64;&#x4E5F;&#x90FD;&#x63D0;&#x4F9B;&#x4E86;&#x7CFB;&#x7EDF;&#x7EA7;&#x7684;&#x591A;&#x7EBF;&#x7A0B;&#x652F;&#x6301;&#xFF0C;&#x540C;&#x65F6;&#x4ECE;&#x6982;&#x5FF5;&#x4E0A;&#x8BB2;&#x591A;&#x7EBF;&#x7A0B;&#x4F3C;&#x4E4E;&#x4E5F;&#x66F4;&#x76F4;&#x89C2;&#xFF0C;&#x56E0;&#x6B64;&#x591A;&#x7EBF;&#x7A0B;&#x7F16;&#x7A0B;&#x6A21;&#x578B;&#x9010;&#x6B65;&#x88AB;&#x5438;&#x7EB3;&#x5230;&#x4E3B;&#x6D41;&#x7684;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x7279;&#x6027;&#x6216;&#x8BED;&#x8A00;&#x6269;&#x5C55;&#x5E93;&#x4E2D;&#x3002;&#x800C;&#x4E3B;&#x6D41;&#x7F16;&#x7A0B;&#x8BED;&#x8A00;&#x5BF9;&#x57FA;&#x4E8E;&#x6D88;&#x606F;&#x7684;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x6A21;&#x578B;&#x652F;&#x6301;&#x5219;&#x76F8;&#x6BD4;&#x8F83;&#x5C11;&#xFF0C;Erlang&#x8BED;&#x8A00;&#x662F;&#x652F;&#x6301;&#x57FA;&#x4E8E;&#x6D88;&#x606F;&#x4F20;&#x9012;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x6A21;&#x578B;&#x7684;&#x4EE3;&#x8868;&#x8005;&#xFF0C;&#x5B83;&#x7684;&#x5E76;&#x53D1;&#x4F53;&#x4E4B;&#x95F4;&#x4E0D;&#x5171;&#x4EAB;&#x5185;&#x5B58;&#x3002;Go&#x8BED;&#x8A00;&#x662F;&#x57FA;&#x4E8E;&#x6D88;&#x606F;&#x5E76;&#x53D1;&#x6A21;&#x578B;&#x7684;&#x96C6;&#x5927;&#x6210;&#x8005;&#xFF0C;&#x5B83;&#x5C06;&#x57FA;&#x4E8E;CSP&#x6A21;&#x578B;&#x7684;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x5185;&#x7F6E;&#x5230;&#x4E86;&#x8BED;&#x8A00;&#x4E2D;&#xFF0C;&#x901A;&#x8FC7;&#x4E00;&#x4E2A;go&#x5173;&#x952E;&#x5B57;&#x5C31;&#x53EF;&#x4EE5;&#x8F7B;&#x6613;&#x5730;&#x542F;&#x52A8;&#x4E00;&#x4E2A;Goroutine&#xFF0C;&#x4E0E;Erlang&#x4E0D;&#x540C;&#x7684;&#x662F;Go&#x8BED;&#x8A00;&#x7684;Goroutine&#x4E4B;&#x95F4;&#x662F;&#x5171;&#x4EAB;&#x5185;&#x5B58;&#x7684;&#x3002;</p>
<h2 id="151-goroutine&#x548C;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;">1.5.1 Goroutine&#x548C;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;</h2>
<p>Goroutine&#x662F;Go&#x8BED;&#x8A00;&#x7279;&#x6709;&#x7684;&#x5E76;&#x53D1;&#x4F53;&#xFF0C;&#x662F;&#x4E00;&#x79CD;&#x8F7B;&#x91CF;&#x7EA7;&#x7684;&#x7EBF;&#x7A0B;&#xFF0C;&#x7531;go&#x5173;&#x952E;&#x5B57;&#x542F;&#x52A8;&#x3002;&#x5728;&#x771F;&#x5B9E;&#x7684;Go&#x8BED;&#x8A00;&#x7684;&#x5B9E;&#x73B0;&#x4E2D;&#xFF0C;goroutine&#x548C;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;&#x4E5F;&#x4E0D;&#x662F;&#x7B49;&#x4EF7;&#x7684;&#x3002;&#x5C3D;&#x7BA1;&#x4E24;&#x8005;&#x7684;&#x533A;&#x522B;&#x5B9E;&#x9645;&#x4E0A;&#x53EA;&#x662F;&#x4E00;&#x4E2A;&#x91CF;&#x7684;&#x533A;&#x522B;&#xFF0C;&#x4F46;&#x6B63;&#x662F;&#x8FD9;&#x4E2A;&#x91CF;&#x53D8;&#x5F15;&#x53D1;&#x4E86;Go&#x8BED;&#x8A00;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x8D28;&#x7684;&#x98DE;&#x8DC3;&#x3002;</p>
<p>&#x9996;&#x5148;&#xFF0C;&#x6BCF;&#x4E2A;&#x7CFB;&#x7EDF;&#x7EA7;&#x7EBF;&#x7A0B;&#x90FD;&#x4F1A;&#x6709;&#x4E00;&#x4E2A;&#x56FA;&#x5B9A;&#x5927;&#x5C0F;&#x7684;&#x6808;&#xFF08;&#x4E00;&#x822C;&#x9ED8;&#x8BA4;&#x53EF;&#x80FD;&#x662F;2MB&#xFF09;&#xFF0C;&#x8FD9;&#x4E2A;&#x6808;&#x4E3B;&#x8981;&#x7528;&#x6765;&#x4FDD;&#x5B58;&#x51FD;&#x6570;&#x9012;&#x5F52;&#x8C03;&#x7528;&#x65F6;&#x53C2;&#x6570;&#x548C;&#x5C40;&#x90E8;&#x53D8;&#x91CF;&#x3002;&#x56FA;&#x5B9A;&#x4E86;&#x6808;&#x7684;&#x5927;&#x5C0F;&#x5BFC;&#x81F4;&#x4E86;&#x4E24;&#x4E2A;&#x95EE;&#x9898;&#xFF1A;&#x4E00;&#x662F;&#x5BF9;&#x4E8E;&#x5F88;&#x591A;&#x53EA;&#x9700;&#x8981;&#x5F88;&#x5C0F;&#x7684;&#x6808;&#x7A7A;&#x95F4;&#x7684;&#x7EBF;&#x7A0B;&#x6765;&#x8BF4;&#x662F;&#x4E00;&#x4E2A;&#x5DE8;&#x5927;&#x7684;&#x6D6A;&#x8D39;&#xFF0C;&#x4E8C;&#x662F;&#x5BF9;&#x4E8E;&#x5C11;&#x6570;&#x9700;&#x8981;&#x5DE8;&#x5927;&#x6808;&#x7A7A;&#x95F4;&#x7684;&#x7EBF;&#x7A0B;&#x6765;&#x8BF4;&#x53C8;&#x9762;&#x4E34;&#x6808;&#x6EA2;&#x51FA;&#x7684;&#x98CE;&#x9669;&#x3002;&#x9488;&#x5BF9;&#x8FD9;&#x4E24;&#x4E2A;&#x95EE;&#x9898;&#x7684;&#x89E3;&#x51B3;&#x65B9;&#x6848;&#x662F;&#xFF1A;&#x8981;&#x4E48;&#x964D;&#x4F4E;&#x56FA;&#x5B9A;&#x7684;&#x6808;&#x5927;&#x5C0F;&#xFF0C;&#x63D0;&#x5347;&#x7A7A;&#x95F4;&#x7684;&#x5229;&#x7528;&#x7387;&#xFF1B;&#x8981;&#x4E48;&#x589E;&#x5927;&#x6808;&#x7684;&#x5927;&#x5C0F;&#x4EE5;&#x5141;&#x8BB8;&#x66F4;&#x6DF1;&#x7684;&#x51FD;&#x6570;&#x9012;&#x5F52;&#x8C03;&#x7528;&#xFF0C;&#x4F46;&#x8FD9;&#x4E24;&#x8005;&#x662F;&#x6CA1;&#x6CD5;&#x540C;&#x65F6;&#x517C;&#x5F97;&#x7684;&#x3002;&#x76F8;&#x53CD;&#xFF0C;&#x4E00;&#x4E2A;Goroutine&#x4F1A;&#x4EE5;&#x4E00;&#x4E2A;&#x5F88;&#x5C0F;&#x7684;&#x6808;&#x542F;&#x52A8;&#xFF08;&#x53EF;&#x80FD;&#x662F;2KB&#x6216;4KB&#xFF09;&#xFF0C;&#x5F53;&#x9047;&#x5230;&#x6DF1;&#x5EA6;&#x9012;&#x5F52;&#x5BFC;&#x81F4;&#x5F53;&#x524D;&#x6808;&#x7A7A;&#x95F4;&#x4E0D;&#x8DB3;&#x65F6;&#xFF0C;Goroutine&#x4F1A;&#x6839;&#x636E;&#x9700;&#x8981;&#x52A8;&#x6001;&#x5730;&#x4F38;&#x7F29;&#x6808;&#x7684;&#x5927;&#x5C0F;&#xFF08;&#x4E3B;&#x6D41;&#x5B9E;&#x73B0;&#x4E2D;&#x6808;&#x7684;&#x6700;&#x5927;&#x503C;&#x53EF;&#x8FBE;&#x5230;1GB&#xFF09;&#x3002;&#x56E0;&#x4E3A;&#x542F;&#x52A8;&#x7684;&#x4EE3;&#x4EF7;&#x5F88;&#x5C0F;&#xFF0C;&#x6240;&#x4EE5;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x8F7B;&#x6613;&#x5730;&#x542F;&#x52A8;&#x6210;&#x5343;&#x4E0A;&#x4E07;&#x4E2A;Goroutine&#x3002;</p>
<p>Go&#x7684;&#x8FD0;&#x884C;&#x65F6;&#x8FD8;&#x5305;&#x542B;&#x4E86;&#x5176;&#x81EA;&#x5DF1;&#x7684;&#x8C03;&#x5EA6;&#x5668;&#xFF0C;&#x8FD9;&#x4E2A;&#x8C03;&#x5EA6;&#x5668;&#x4F7F;&#x7528;&#x4E86;&#x4E00;&#x4E9B;&#x6280;&#x672F;&#x624B;&#x6BB5;&#xFF0C;&#x53EF;&#x4EE5;&#x5728;n&#x4E2A;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;&#x4E0A;&#x591A;&#x5DE5;&#x8C03;&#x5EA6;m&#x4E2A;Goroutine&#x3002;Go&#x8C03;&#x5EA6;&#x5668;&#x7684;&#x5DE5;&#x4F5C;&#x548C;&#x5185;&#x6838;&#x7684;&#x8C03;&#x5EA6;&#x662F;&#x76F8;&#x4F3C;&#x7684;&#xFF0C;&#x4F46;&#x662F;&#x8FD9;&#x4E2A;&#x8C03;&#x5EA6;&#x5668;&#x53EA;&#x5173;&#x6CE8;&#x5355;&#x72EC;&#x7684;Go&#x7A0B;&#x5E8F;&#x4E2D;&#x7684;Goroutine&#x3002;Goroutine&#x91C7;&#x7528;&#x7684;&#x662F;&#x534A;&#x62A2;&#x5360;&#x5F0F;&#x7684;&#x534F;&#x4F5C;&#x8C03;&#x5EA6;&#xFF0C;&#x53EA;&#x6709;&#x5728;&#x5F53;&#x524D;Goroutine&#x53D1;&#x751F;&#x963B;&#x585E;&#x65F6;&#x624D;&#x4F1A;&#x5BFC;&#x81F4;&#x8C03;&#x5EA6;&#xFF1B;&#x540C;&#x65F6;&#x53D1;&#x751F;&#x5728;&#x7528;&#x6237;&#x6001;&#xFF0C;&#x8C03;&#x5EA6;&#x5668;&#x4F1A;&#x6839;&#x636E;&#x5177;&#x4F53;&#x51FD;&#x6570;&#x53EA;&#x4FDD;&#x5B58;&#x5FC5;&#x8981;&#x7684;&#x5BC4;&#x5B58;&#x5668;&#xFF0C;&#x5207;&#x6362;&#x7684;&#x4EE3;&#x4EF7;&#x8981;&#x6BD4;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;&#x4F4E;&#x5F97;&#x591A;&#x3002;&#x8FD0;&#x884C;&#x65F6;&#x6709;&#x4E00;&#x4E2A;<code>runtime.GOMAXPROCS</code>&#x53D8;&#x91CF;&#xFF0C;&#x7528;&#x4E8E;&#x63A7;&#x5236;&#x5F53;&#x524D;&#x8FD0;&#x884C;&#x6B63;&#x5E38;&#x975E;&#x963B;&#x585E;Goroutine&#x7684;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;&#x6570;&#x76EE;&#x3002;</p>
<p>&#x5728;Go&#x8BED;&#x8A00;&#x4E2D;&#x542F;&#x52A8;&#x4E00;&#x4E2A;Goroutine&#x4E0D;&#x4EC5;&#x548C;&#x8C03;&#x7528;&#x51FD;&#x6570;&#x4E00;&#x6837;&#x7B80;&#x5355;&#xFF0C;&#x800C;&#x4E14;Goroutine&#x4E4B;&#x95F4;&#x8C03;&#x5EA6;&#x4EE3;&#x4EF7;&#x4E5F;&#x5F88;&#x4F4E;&#xFF0C;&#x8FD9;&#x4E9B;&#x56E0;&#x7D20;&#x6781;&#x5927;&#x5730;&#x4FC3;&#x8FDB;&#x4E86;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x7684;&#x6D41;&#x884C;&#x548C;&#x53D1;&#x5C55;&#x3002;</p>
<h2 id="152-&#x539F;&#x5B50;&#x64CD;&#x4F5C;">1.5.2 &#x539F;&#x5B50;&#x64CD;&#x4F5C;</h2>
<p>&#x6240;&#x8C13;&#x7684;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x5C31;&#x662F;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x4E2D;&#x201C;&#x6700;&#x5C0F;&#x7684;&#x4E14;&#x4E0D;&#x53EF;&#x5E76;&#x884C;&#x5316;&#x201D;&#x7684;&#x64CD;&#x4F5C;&#x3002;&#x901A;&#x5E38;&#xFF0C;&#x5982;&#x679C;&#x591A;&#x4E2A;&#x5E76;&#x53D1;&#x4F53;&#x5BF9;&#x540C;&#x4E00;&#x4E2A;&#x5171;&#x4EAB;&#x8D44;&#x6E90;&#x8FDB;&#x884C;&#x7684;&#x64CD;&#x4F5C;&#x662F;&#x539F;&#x5B50;&#x7684;&#x8BDD;&#xFF0C;&#x90A3;&#x4E48;&#x540C;&#x4E00;&#x65F6;&#x523B;&#x6700;&#x591A;&#x53EA;&#x80FD;&#x6709;&#x4E00;&#x4E2A;&#x5E76;&#x53D1;&#x4F53;&#x5BF9;&#x8BE5;&#x8D44;&#x6E90;&#x8FDB;&#x884C;&#x64CD;&#x4F5C;&#x3002;&#x4ECE;&#x7EBF;&#x7A0B;&#x89D2;&#x5EA6;&#x770B;&#xFF0C;&#x5728;&#x5F53;&#x524D;&#x7EBF;&#x7A0B;&#x4FEE;&#x6539;&#x5171;&#x4EAB;&#x8D44;&#x6E90;&#x671F;&#x95F4;&#xFF0C;&#x5176;&#x5B83;&#x7684;&#x7EBF;&#x7A0B;&#x662F;&#x4E0D;&#x80FD;&#x8BBF;&#x95EE;&#x8BE5;&#x8D44;&#x6E90;&#x7684;&#x3002;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x5BF9;&#x4E8E;&#x591A;&#x7EBF;&#x7A0B;&#x5E76;&#x53D1;&#x7F16;&#x7A0B;&#x6A21;&#x578B;&#x6765;&#x8BF4;&#xFF0C;&#x4E0D;&#x4F1A;&#x53D1;&#x751F;&#x6709;&#x522B;&#x4E8E;&#x5355;&#x7EBF;&#x7A0B;&#x7684;&#x610F;&#x5916;&#x60C5;&#x51B5;&#xFF0C;&#x5171;&#x4EAB;&#x8D44;&#x6E90;&#x7684;&#x5B8C;&#x6574;&#x6027;&#x53EF;&#x4EE5;&#x5F97;&#x5230;&#x4FDD;&#x8BC1;&#x3002;</p>
<p>&#x4E00;&#x822C;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x90FD;&#x662F;&#x901A;&#x8FC7;&#x201C;&#x4E92;&#x65A5;&#x201D;&#x8BBF;&#x95EE;&#x6765;&#x4FDD;&#x8BC1;&#x7684;&#xFF0C;&#x901A;&#x5E38;&#x7531;&#x7279;&#x6B8A;&#x7684;CPU&#x6307;&#x4EE4;&#x63D0;&#x4F9B;&#x4FDD;&#x62A4;&#x3002;&#x5F53;&#x7136;&#xFF0C;&#x5982;&#x679C;&#x4EC5;&#x4EC5;&#x662F;&#x60F3;&#x6A21;&#x62DF;&#x4E0B;&#x7C97;&#x7C92;&#x5EA6;&#x7684;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x501F;&#x52A9;&#x4E8E;<code>sync.Mutex</code>&#x6765;&#x5B9E;&#x73B0;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;sync&quot;</span>
)

<span class="hljs-keyword">var</span> total <span class="hljs-keyword">struct</span> {
    sync.Mutex
    value <span class="hljs-keyword">int</span>
}

<span class="hljs-keyword">func</span> worker(wg *sync.WaitGroup) {
    <span class="hljs-keyword">defer</span> wg.Done()

    <span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt;= <span class="hljs-number">100</span>; i++ {
        total.Lock()
        total.value += i
        total.Unlock()
    }
}

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">var</span> wg sync.WaitGroup
    wg.Add(<span class="hljs-number">2</span>)
    <span class="hljs-keyword">go</span> worker(&amp;wg)
    <span class="hljs-keyword">go</span> worker(&amp;wg)
    wg.Wait()

    fmt.Println(total.value)
}
</code></pre>
<p>&#x5728;<code>worker</code>&#x7684;&#x5FAA;&#x73AF;&#x4E2D;&#xFF0C;&#x4E3A;&#x4E86;&#x4FDD;&#x8BC1;<code>total.value += i</code>&#x7684;&#x539F;&#x5B50;&#x6027;&#xFF0C;&#x6211;&#x4EEC;&#x901A;&#x8FC7;<code>sync.Mutex</code>&#x52A0;&#x9501;&#x548C;&#x89E3;&#x9501;&#x6765;&#x4FDD;&#x8BC1;&#x8BE5;&#x8BED;&#x53E5;&#x5728;&#x540C;&#x4E00;&#x65F6;&#x523B;&#x53EA;&#x88AB;&#x4E00;&#x4E2A;&#x7EBF;&#x7A0B;&#x8BBF;&#x95EE;&#x3002;&#x5BF9;&#x4E8E;&#x591A;&#x7EBF;&#x7A0B;&#x6A21;&#x578B;&#x7684;&#x7A0B;&#x5E8F;&#x800C;&#x8A00;&#xFF0C;&#x8FDB;&#x51FA;&#x4E34;&#x754C;&#x533A;&#x524D;&#x540E;&#x8FDB;&#x884C;&#x52A0;&#x9501;&#x548C;&#x89E3;&#x9501;&#x90FD;&#x662F;&#x5FC5;&#x987B;&#x7684;&#x3002;&#x5982;&#x679C;&#x6CA1;&#x6709;&#x9501;&#x7684;&#x4FDD;&#x62A4;&#xFF0C;<code>total</code>&#x7684;&#x6700;&#x7EC8;&#x503C;&#x5C06;&#x7531;&#x4E8E;&#x591A;&#x7EBF;&#x7A0B;&#x4E4B;&#x95F4;&#x7684;&#x7ADE;&#x4E89;&#x800C;&#x53EF;&#x80FD;&#x4F1A;&#x4E0D;&#x6B63;&#x786E;&#x3002;</p>
<p>&#x7528;&#x4E92;&#x65A5;&#x9501;&#x6765;&#x4FDD;&#x62A4;&#x4E00;&#x4E2A;&#x6570;&#x503C;&#x578B;&#x7684;&#x5171;&#x4EAB;&#x8D44;&#x6E90;&#xFF0C;&#x9EBB;&#x70E6;&#x4E14;&#x6548;&#x7387;&#x4F4E;&#x4E0B;&#x3002;&#x6807;&#x51C6;&#x5E93;&#x7684;<code>sync/atomic</code>&#x5305;&#x5BF9;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x63D0;&#x4F9B;&#x4E86;&#x4E30;&#x5BCC;&#x7684;&#x652F;&#x6301;&#x3002;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x91CD;&#x65B0;&#x5B9E;&#x73B0;&#x4E0A;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;sync&quot;</span>
    <span class="hljs-string">&quot;sync/atomic&quot;</span>
)

<span class="hljs-keyword">var</span> total <span class="hljs-keyword">uint64</span>

<span class="hljs-keyword">func</span> worker(wg *sync.WaitGroup) {
    <span class="hljs-keyword">defer</span> wg.Done()

    <span class="hljs-keyword">var</span> i <span class="hljs-keyword">uint64</span>
    <span class="hljs-keyword">for</span> i = <span class="hljs-number">0</span>; i &lt;= <span class="hljs-number">100</span>; i++ {
        atomic.AddUint64(&amp;total, i)
    }
}

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">var</span> wg sync.WaitGroup
    wg.Add(<span class="hljs-number">2</span>)

    <span class="hljs-keyword">go</span> worker(&amp;wg)
    <span class="hljs-keyword">go</span> worker(&amp;wg)
    wg.Wait()
}
</code></pre>
<p><code>atomic.AddUint64</code>&#x51FD;&#x6570;&#x8C03;&#x7528;&#x4FDD;&#x8BC1;&#x4E86;<code>total</code>&#x7684;&#x8BFB;&#x53D6;&#x3001;&#x66F4;&#x65B0;&#x548C;&#x4FDD;&#x5B58;&#x662F;&#x4E00;&#x4E2A;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#xFF0C;&#x56E0;&#x6B64;&#x5728;&#x591A;&#x7EBF;&#x7A0B;&#x4E2D;&#x8BBF;&#x95EE;&#x4E5F;&#x662F;&#x5B89;&#x5168;&#x7684;&#x3002;</p>
<p>&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x914D;&#x5408;&#x4E92;&#x65A5;&#x9501;&#x53EF;&#x4EE5;&#x5B9E;&#x73B0;&#x975E;&#x5E38;&#x9AD8;&#x6548;&#x7684;&#x5355;&#x4EF6;&#x6A21;&#x5F0F;&#x3002;&#x4E92;&#x65A5;&#x9501;&#x7684;&#x4EE3;&#x4EF7;&#x6BD4;&#x666E;&#x901A;&#x6574;&#x6570;&#x7684;&#x539F;&#x5B50;&#x8BFB;&#x5199;&#x9AD8;&#x5F88;&#x591A;&#xFF0C;&#x5728;&#x6027;&#x80FD;&#x654F;&#x611F;&#x7684;&#x5730;&#x65B9;&#x53EF;&#x4EE5;&#x589E;&#x52A0;&#x4E00;&#x4E2A;&#x6570;&#x5B57;&#x578B;&#x7684;&#x6807;&#x5FD7;&#x4F4D;&#xFF0C;&#x901A;&#x8FC7;&#x539F;&#x5B50;&#x68C0;&#x6D4B;&#x6807;&#x5FD7;&#x4F4D;&#x72B6;&#x6001;&#x964D;&#x4F4E;&#x4E92;&#x65A5;&#x9501;&#x7684;&#x4F7F;&#x7528;&#x6B21;&#x6570;&#x6765;&#x63D0;&#x9AD8;&#x6027;&#x80FD;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">type</span> singleton <span class="hljs-keyword">struct</span> {}

<span class="hljs-keyword">var</span> (
    instance    *singleton
    initialized <span class="hljs-keyword">uint32</span>
    mu          sync.Mutex
)

<span class="hljs-keyword">func</span> Instance() *singleton {
    <span class="hljs-keyword">if</span> atomic.LoadUint32(&amp;initialized) == <span class="hljs-number">1</span> {
        <span class="hljs-keyword">return</span> instance
    }

    mu.Lock()
    <span class="hljs-keyword">defer</span> mu.Unlock()

    <span class="hljs-keyword">if</span> instance == <span class="hljs-literal">nil</span> {
        <span class="hljs-keyword">defer</span> atomic.StoreUint32(&amp;initialized, <span class="hljs-number">1</span>)
        instance = &amp;singleton{}
    }
    <span class="hljs-keyword">return</span> instance
}
</code></pre>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5C06;&#x901A;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x63D0;&#x53D6;&#x51FA;&#x6765;&#xFF0C;&#x5C31;&#x6210;&#x4E86;&#x6807;&#x51C6;&#x5E93;&#x4E2D;<code>sync.Once</code>&#x7684;&#x5B9E;&#x73B0;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">type</span> Once <span class="hljs-keyword">struct</span> {
    m    Mutex
    done <span class="hljs-keyword">uint32</span>
}

<span class="hljs-keyword">func</span> (o *Once) Do(f <span class="hljs-keyword">func</span>()) {
    <span class="hljs-keyword">if</span> atomic.LoadUint32(&amp;o.done) == <span class="hljs-number">1</span> {
        <span class="hljs-keyword">return</span>
    }

    o.m.Lock()
    <span class="hljs-keyword">defer</span> o.m.Unlock()

    <span class="hljs-keyword">if</span> o.done == <span class="hljs-number">0</span> {
        <span class="hljs-keyword">defer</span> atomic.StoreUint32(&amp;o.done, <span class="hljs-number">1</span>)
        f()
    }
}
</code></pre>
<p>&#x57FA;&#x4E8E;<code>sync.Once</code>&#x91CD;&#x65B0;&#x5B9E;&#x73B0;&#x5355;&#x4EF6;&#x6A21;&#x5F0F;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> (
    instance *singleton
    once     sync.Once
)

<span class="hljs-keyword">func</span> Instance() *singleton {
    once.Do(<span class="hljs-keyword">func</span>() {
        instance = &amp;singleton{}
    })
    <span class="hljs-keyword">return</span> instance
}
</code></pre>
<p><code>sync/atomic</code>&#x5305;&#x5BF9;&#x57FA;&#x672C;&#x7684;&#x6570;&#x503C;&#x7C7B;&#x578B;&#x53CA;&#x590D;&#x6742;&#x5BF9;&#x8C61;&#x7684;&#x8BFB;&#x5199;&#x90FD;&#x63D0;&#x4F9B;&#x4E86;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x7684;&#x652F;&#x6301;&#x3002;<code>atomic.Value</code>&#x539F;&#x5B50;&#x5BF9;&#x8C61;&#x63D0;&#x4F9B;&#x4E86;<code>Load</code>&#x548C;<code>Store</code>&#x4E24;&#x4E2A;&#x539F;&#x5B50;&#x65B9;&#x6CD5;&#xFF0C;&#x5206;&#x522B;&#x7528;&#x4E8E;&#x52A0;&#x8F7D;&#x548C;&#x4FDD;&#x5B58;&#x6570;&#x636E;&#xFF0C;&#x8FD4;&#x56DE;&#x503C;&#x548C;&#x53C2;&#x6570;&#x90FD;&#x662F;<code>interface{}</code>&#x7C7B;&#x578B;&#xFF0C;&#x56E0;&#x6B64;&#x53EF;&#x4EE5;&#x7528;&#x4E8E;&#x4EFB;&#x610F;&#x7684;&#x81EA;&#x5B9A;&#x4E49;&#x590D;&#x6742;&#x7C7B;&#x578B;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> config atomic.Value <span class="hljs-comment">// &#x4FDD;&#x5B58;&#x5F53;&#x524D;&#x914D;&#x7F6E;&#x4FE1;&#x606F;</span>

<span class="hljs-comment">// &#x521D;&#x59CB;&#x5316;&#x914D;&#x7F6E;&#x4FE1;&#x606F;</span>
config.Store(loadConfig())

<span class="hljs-comment">// &#x542F;&#x52A8;&#x4E00;&#x4E2A;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;, &#x52A0;&#x8F7D;&#x66F4;&#x65B0;&#x540E;&#x7684;&#x914D;&#x7F6E;&#x4FE1;&#x606F;</span>
<span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>() {
    <span class="hljs-keyword">for</span> {
        time.Sleep(time.Second)
        config.Store(loadConfig())
    }
}()

<span class="hljs-comment">// &#x7528;&#x4E8E;&#x5904;&#x7406;&#x8BF7;&#x6C42;&#x7684;&#x5DE5;&#x4F5C;&#x8005;&#x7EBF;&#x7A0B;&#x59CB;&#x7EC8;&#x91C7;&#x7528;&#x6700;&#x65B0;&#x7684;&#x914D;&#x7F6E;&#x4FE1;&#x606F;</span>
<span class="hljs-keyword">for</span> i := <span class="hljs-number">0</span>; i &lt; <span class="hljs-number">10</span>; i++ {
    <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>() {
        <span class="hljs-keyword">for</span> r := <span class="hljs-keyword">range</span> requests() {
            c := config.Load()
            <span class="hljs-comment">// ...</span>
        }
    }()
}
</code></pre>
<p>&#x8FD9;&#x662F;&#x4E00;&#x4E2A;&#x7B80;&#x5316;&#x7684;&#x751F;&#x4EA7;&#x8005;&#x6D88;&#x8D39;&#x8005;&#x6A21;&#x578B;&#xFF1A;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x751F;&#x6210;&#x6700;&#x65B0;&#x7684;&#x914D;&#x7F6E;&#x4FE1;&#x606F;&#xFF1B;&#x524D;&#x53F0;&#x591A;&#x4E2A;&#x5DE5;&#x4F5C;&#x8005;&#x7EBF;&#x7A0B;&#x83B7;&#x53D6;&#x6700;&#x65B0;&#x7684;&#x914D;&#x7F6E;&#x4FE1;&#x606F;&#x3002;&#x6240;&#x6709;&#x7EBF;&#x7A0B;&#x5171;&#x4EAB;&#x914D;&#x7F6E;&#x4FE1;&#x606F;&#x8D44;&#x6E90;&#x3002;</p>
<h2 id="153-&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x5185;&#x5B58;&#x6A21;&#x578B;">1.5.3 &#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x5185;&#x5B58;&#x6A21;&#x578B;</h2>
<p>&#x5982;&#x679C;&#x53EA;&#x662F;&#x60F3;&#x7B80;&#x5355;&#x5730;&#x5728;&#x7EBF;&#x7A0B;&#x4E4B;&#x95F4;&#x8FDB;&#x884C;&#x6570;&#x636E;&#x540C;&#x6B65;&#x7684;&#x8BDD;&#xFF0C;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x5DF2;&#x7ECF;&#x4E3A;&#x7F16;&#x7A0B;&#x4EBA;&#x5458;&#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x4E9B;&#x540C;&#x6B65;&#x4FDD;&#x969C;&#x3002;&#x4E0D;&#x8FC7;&#x8FD9;&#x79CD;&#x4FDD;&#x969C;&#x6709;&#x4E00;&#x4E2A;&#x524D;&#x63D0;&#xFF1A;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x7684;&#x5185;&#x5B58;&#x6A21;&#x578B;&#x3002;&#x8981;&#x4E86;&#x89E3;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#xFF0C;&#x6211;&#x4EEC;&#x5148;&#x770B;&#x770B;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;&#x4F8B;&#x5B50;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a <span class="hljs-keyword">string</span>
<span class="hljs-keyword">var</span> done <span class="hljs-keyword">bool</span>

<span class="hljs-keyword">func</span> setup() {
    a = <span class="hljs-string">&quot;hello, world&quot;</span>
    done = <span class="hljs-literal">true</span>
}

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> setup()
    <span class="hljs-keyword">for</span> !done {}
    <span class="hljs-built_in">print</span>(a)
}
</code></pre>
<p>&#x6211;&#x4EEC;&#x521B;&#x5EFA;&#x4E86;<code>setup</code>&#x7EBF;&#x7A0B;&#xFF0C;&#x7528;&#x4E8E;&#x5BF9;&#x5B57;&#x7B26;&#x4E32;<code>a</code>&#x7684;&#x521D;&#x59CB;&#x5316;&#x5DE5;&#x4F5C;&#xFF0C;&#x521D;&#x59CB;&#x5316;&#x5B8C;&#x6210;&#x4E4B;&#x540E;&#x8BBE;&#x7F6E;<code>done</code>&#x6807;&#x5FD7;&#x4E3A;<code>true</code>&#x3002;<code>main</code>&#x51FD;&#x6570;&#x6240;&#x5728;&#x7684;&#x4E3B;&#x7EBF;&#x7A0B;&#x4E2D;&#xFF0C;&#x901A;&#x8FC7;<code>for !done {}</code>&#x68C0;&#x6D4B;<code>done</code>&#x53D8;&#x4E3A;<code>true</code>&#x65F6;&#xFF0C;&#x8BA4;&#x4E3A;&#x5B57;&#x7B26;&#x4E32;&#x521D;&#x59CB;&#x5316;&#x5DE5;&#x4F5C;&#x5B8C;&#x6210;&#xFF0C;&#x7136;&#x540E;&#x8FDB;&#x884C;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x6253;&#x5370;&#x5DE5;&#x4F5C;&#x3002;</p>
<p>&#x4F46;&#x662F;Go&#x8BED;&#x8A00;&#x5E76;&#x4E0D;&#x4FDD;&#x8BC1;&#x5728;<code>main</code>&#x51FD;&#x6570;&#x4E2D;&#x89C2;&#x6D4B;&#x5230;&#x7684;&#x5BF9;<code>done</code>&#x7684;&#x5199;&#x5165;&#x64CD;&#x4F5C;&#x53D1;&#x751F;&#x5728;&#x5BF9;&#x5B57;&#x7B26;&#x4E32;<code>a</code>&#x7684;&#x5199;&#x5165;&#x7684;&#x64CD;&#x4F5C;&#x4E4B;&#x540E;&#xFF0C;&#x56E0;&#x6B64;&#x7A0B;&#x5E8F;&#x5F88;&#x53EF;&#x80FD;&#x6253;&#x5370;&#x4E00;&#x4E2A;&#x7A7A;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x66F4;&#x7CDF;&#x7CD5;&#x7684;&#x662F;&#xFF0C;&#x56E0;&#x4E3A;&#x4E24;&#x4E2A;&#x7EBF;&#x7A0B;&#x4E4B;&#x95F4;&#x6CA1;&#x6709;&#x540C;&#x6B65;&#x4E8B;&#x4EF6;&#xFF0C;<code>setup</code>&#x7EBF;&#x7A0B;&#x5BF9;<code>done</code>&#x7684;&#x5199;&#x5165;&#x64CD;&#x4F5C;&#x751A;&#x81F3;&#x65E0;&#x6CD5;&#x88AB;<code>main</code>&#x7EBF;&#x7A0B;&#x770B;&#x5230;&#xFF0C;<code>main</code>&#x51FD;&#x6570;&#x6709;&#x53EF;&#x80FD;&#x9677;&#x5165;&#x6B7B;&#x5FAA;&#x73AF;&#x4E2D;&#x3002;</p>
<p>&#x5728;Go&#x8BED;&#x8A00;&#x4E2D;&#xFF0C;&#x540C;&#x4E00;&#x4E2A;Goroutine&#x7EBF;&#x7A0B;&#x5185;&#x90E8;&#xFF0C;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x5185;&#x5B58;&#x6A21;&#x578B;&#x662F;&#x5F97;&#x5230;&#x4FDD;&#x8BC1;&#x7684;&#x3002;&#x4F46;&#x662F;&#x4E0D;&#x540C;&#x7684;Goroutine&#x4E4B;&#x95F4;&#xFF0C;&#x5E76;&#x4E0D;&#x6EE1;&#x8DB3;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x5185;&#x5B58;&#x6A21;&#x578B;&#xFF0C;&#x9700;&#x8981;&#x901A;&#x8FC7;&#x660E;&#x786E;&#x5B9A;&#x4E49;&#x7684;&#x540C;&#x6B65;&#x4E8B;&#x4EF6;&#x6765;&#x4F5C;&#x4E3A;&#x540C;&#x6B65;&#x7684;&#x53C2;&#x8003;&#x3002;&#x5982;&#x679C;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x4E0D;&#x53EF;&#x6392;&#x5E8F;&#xFF0C;&#x90A3;&#x4E48;&#x5C31;&#x8BF4;&#x8FD9;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x662F;&#x5E76;&#x53D1;&#x7684;&#x3002;&#x4E3A;&#x4E86;&#x6700;&#x5927;&#x5316;&#x5E76;&#x884C;&#xFF0C;Go&#x8BED;&#x8A00;&#x7684;&#x7F16;&#x8BD1;&#x5668;&#x548C;&#x5904;&#x7406;&#x5668;&#x5728;&#x4E0D;&#x5F71;&#x54CD;&#x4E0A;&#x8FF0;&#x89C4;&#x5B9A;&#x7684;&#x524D;&#x63D0;&#x4E0B;&#x53EF;&#x80FD;&#x4F1A;&#x5BF9;&#x6267;&#x884C;&#x8BED;&#x53E5;&#x91CD;&#x65B0;&#x6392;&#x5E8F;&#xFF08;CPU&#x4E5F;&#x4F1A;&#x5BF9;&#x4E00;&#x4E9B;&#x6307;&#x4EE4;&#x8FDB;&#x884C;&#x4E71;&#x5E8F;&#x6267;&#x884C;&#xFF09;&#x3002;</p>
<p>&#x56E0;&#x6B64;&#xFF0C;&#x5982;&#x679C;&#x5728;&#x4E00;&#x4E2A;Goroutine&#x4E2D;&#x987A;&#x5E8F;&#x6267;&#x884C;<code>a = 1; b = 2;</code>&#x4E24;&#x4E2A;&#x8BED;&#x53E5;&#xFF0C;&#x867D;&#x7136;&#x5728;&#x5F53;&#x524D;&#x7684;Goroutine&#x4E2D;&#x53EF;&#x4EE5;&#x8BA4;&#x4E3A;<code>a = 1;</code>&#x8BED;&#x53E5;&#x5148;&#x4E8E;<code>b = 2;</code>&#x8BED;&#x53E5;&#x6267;&#x884C;&#xFF0C;&#x4F46;&#x662F;&#x5728;&#x53E6;&#x4E00;&#x4E2A;Goroutine&#x4E2D;<code>b = 2;</code>&#x8BED;&#x53E5;&#x53EF;&#x80FD;&#x4F1A;&#x5148;&#x4E8E;<code>a = 1;</code>&#x8BED;&#x53E5;&#x6267;&#x884C;&#xFF0C;&#x751A;&#x81F3;&#x5728;&#x53E6;&#x4E00;&#x4E2A;Goroutine&#x4E2D;&#x65E0;&#x6CD5;&#x770B;&#x5230;&#x5B83;&#x4EEC;&#x7684;&#x53D8;&#x5316;&#xFF08;&#x53EF;&#x80FD;&#x59CB;&#x7EC8;&#x5728;&#x5BC4;&#x5B58;&#x5668;&#x4E2D;&#xFF09;&#x3002;&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#x5728;&#x53E6;&#x4E00;&#x4E2A;Goroutine&#x770B;&#x6765;, <code>a = 1; b = 2;</code>&#x4E24;&#x4E2A;&#x8BED;&#x53E5;&#x7684;&#x6267;&#x884C;&#x987A;&#x5E8F;&#x662F;&#x4E0D;&#x786E;&#x5B9A;&#x7684;&#x3002;&#x5982;&#x679C;&#x4E00;&#x4E2A;&#x5E76;&#x53D1;&#x7A0B;&#x5E8F;&#x65E0;&#x6CD5;&#x786E;&#x5B9A;&#x4E8B;&#x4EF6;&#x7684;&#x987A;&#x5E8F;&#x5173;&#x7CFB;&#xFF0C;&#x90A3;&#x4E48;&#x7A0B;&#x5E8F;&#x7684;&#x8FD0;&#x884C;&#x7ED3;&#x679C;&#x5F80;&#x5F80;&#x4F1A;&#x6709;&#x4E0D;&#x786E;&#x5B9A;&#x7684;&#x7ED3;&#x679C;&#x3002;&#x6BD4;&#x5982;&#x4E0B;&#x9762;&#x8FD9;&#x4E2A;&#x7A0B;&#x5E8F;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> <span class="hljs-built_in">println</span>(<span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>)
}
</code></pre>
<p>&#x6839;&#x636E;Go&#x8BED;&#x8A00;&#x89C4;&#x8303;&#xFF0C;<code>main</code>&#x51FD;&#x6570;&#x9000;&#x51FA;&#x65F6;&#x7A0B;&#x5E8F;&#x7ED3;&#x675F;&#xFF0C;&#x4E0D;&#x4F1A;&#x7B49;&#x5F85;&#x4EFB;&#x4F55;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x3002;&#x56E0;&#x4E3A;Goroutine&#x7684;&#x6267;&#x884C;&#x548C;<code>main</code>&#x51FD;&#x6570;&#x7684;&#x8FD4;&#x56DE;&#x4E8B;&#x4EF6;&#x662F;&#x5E76;&#x53D1;&#x7684;&#xFF0C;&#x8C01;&#x90FD;&#x6709;&#x53EF;&#x80FD;&#x5148;&#x53D1;&#x751F;&#xFF0C;&#x6240;&#x4EE5;&#x4EC0;&#x4E48;&#x65F6;&#x5019;&#x6253;&#x5370;&#xFF0C;&#x80FD;&#x5426;&#x6253;&#x5370;&#x90FD;&#x662F;&#x672A;&#x77E5;&#x7684;&#x3002;</p>
<p>&#x7528;&#x524D;&#x9762;&#x7684;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x5E76;&#x4E0D;&#x80FD;&#x89E3;&#x51B3;&#x95EE;&#x9898;&#xFF0C;&#x56E0;&#x4E3A;&#x6211;&#x4EEC;&#x65E0;&#x6CD5;&#x786E;&#x5B9A;&#x4E24;&#x4E2A;&#x539F;&#x5B50;&#x64CD;&#x4F5C;&#x4E4B;&#x95F4;&#x7684;&#x987A;&#x5E8F;&#x3002;&#x89E3;&#x51B3;&#x95EE;&#x9898;&#x7684;&#x529E;&#x6CD5;&#x5C31;&#x662F;&#x901A;&#x8FC7;&#x540C;&#x6B65;&#x539F;&#x8BED;&#x6765;&#x7ED9;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x660E;&#x786E;&#x6392;&#x5E8F;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> main() {
    done := <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">int</span>)

    <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>(){
        <span class="hljs-built_in">println</span>(<span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>)
        done &lt;- <span class="hljs-number">1</span>
    }()

    &lt;-done
}
</code></pre>
<p>&#x5F53;<code>&lt;-done</code>&#x6267;&#x884C;&#x65F6;&#xFF0C;&#x5FC5;&#x7136;&#x8981;&#x6C42;<code>done &lt;- 1</code>&#x4E5F;&#x5DF2;&#x7ECF;&#x6267;&#x884C;&#x3002;&#x6839;&#x636E;&#x540C;&#x4E00;&#x4E2A;Gorouine&#x4F9D;&#x7136;&#x6EE1;&#x8DB3;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x89C4;&#x5219;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5224;&#x65AD;&#x5F53;<code>done &lt;- 1</code>&#x6267;&#x884C;&#x65F6;&#xFF0C;<code>println(&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;)</code>&#x8BED;&#x53E5;&#x5FC5;&#x7136;&#x5DF2;&#x7ECF;&#x6267;&#x884C;&#x5B8C;&#x6210;&#x4E86;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x73B0;&#x5728;&#x7684;&#x7A0B;&#x5E8F;&#x786E;&#x4FDD;&#x53EF;&#x4EE5;&#x6B63;&#x5E38;&#x6253;&#x5370;&#x7ED3;&#x679C;&#x3002;</p>
<p>&#x5F53;&#x7136;&#xFF0C;&#x901A;&#x8FC7;<code>sync.Mutex</code>&#x4E92;&#x65A5;&#x91CF;&#x4E5F;&#x662F;&#x53EF;&#x4EE5;&#x5B9E;&#x73B0;&#x540C;&#x6B65;&#x7684;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">var</span> mu sync.Mutex

    mu.Lock()
    <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>(){
        <span class="hljs-built_in">println</span>(<span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>)
        mu.Unlock()
    }()

    mu.Lock()
}
</code></pre>
<p>&#x53EF;&#x4EE5;&#x786E;&#x5B9A;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x7684;<code>mu.Unlock()</code>&#x5FC5;&#x7136;&#x5728;<code>println(&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;)</code>&#x5B8C;&#x6210;&#x540E;&#x53D1;&#x751F;&#xFF08;&#x540C;&#x4E00;&#x4E2A;&#x7EBF;&#x7A0B;&#x6EE1;&#x8DB3;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#xFF09;&#xFF0C;<code>main</code>&#x51FD;&#x6570;&#x7684;&#x7B2C;&#x4E8C;&#x4E2A;<code>mu.Lock()</code>&#x5FC5;&#x7136;&#x5728;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x7684;<code>mu.Unlock()</code>&#x4E4B;&#x540E;&#x53D1;&#x751F;&#xFF08;<code>sync.Mutex</code>&#x4FDD;&#x8BC1;&#xFF09;&#xFF0C;&#x6B64;&#x65F6;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x7684;&#x6253;&#x5370;&#x5DE5;&#x4F5C;&#x5DF2;&#x7ECF;&#x987A;&#x5229;&#x5B8C;&#x6210;&#x4E86;&#x3002;</p>
<h2 id="154-&#x521D;&#x59CB;&#x5316;&#x987A;&#x5E8F;">1.5.4 &#x521D;&#x59CB;&#x5316;&#x987A;&#x5E8F;</h2>
<p>&#x524D;&#x9762;&#x51FD;&#x6570;&#x7AE0;&#x8282;&#x4E2D;&#x6211;&#x4EEC;&#x5DF2;&#x7ECF;&#x7B80;&#x5355;&#x4ECB;&#x7ECD;&#x8FC7;&#x7A0B;&#x5E8F;&#x7684;&#x521D;&#x59CB;&#x5316;&#x987A;&#x5E8F;&#xFF0C;&#x8FD9;&#x662F;&#x5C5E;&#x4E8E;Go&#x8BED;&#x8A00;&#x9762;&#x5411;&#x5E76;&#x53D1;&#x7684;&#x5185;&#x5B58;&#x6A21;&#x578B;&#x7684;&#x57FA;&#x7840;&#x89C4;&#x8303;&#x3002;</p>
<p>Go&#x7A0B;&#x5E8F;&#x7684;&#x521D;&#x59CB;&#x5316;&#x548C;&#x6267;&#x884C;&#x603B;&#x662F;&#x4ECE;<code>main.main</code>&#x51FD;&#x6570;&#x5F00;&#x59CB;&#x7684;&#x3002;&#x4F46;&#x662F;&#x5982;&#x679C;<code>main</code>&#x5305;&#x91CC;&#x5BFC;&#x5165;&#x4E86;&#x5176;&#x5B83;&#x7684;&#x5305;&#xFF0C;&#x5219;&#x4F1A;&#x6309;&#x7167;&#x987A;&#x5E8F;&#x5C06;&#x5B83;&#x4EEC;&#x5305;&#x542B;&#x8FDB;<code>main</code>&#x5305;&#x91CC;&#xFF08;&#x8FD9;&#x91CC;&#x7684;&#x5BFC;&#x5165;&#x987A;&#x5E8F;&#x4F9D;&#x8D56;&#x5177;&#x4F53;&#x5B9E;&#x73B0;&#xFF0C;&#x4E00;&#x822C;&#x53EF;&#x80FD;&#x662F;&#x4EE5;&#x6587;&#x4EF6;&#x540D;&#x6216;&#x5305;&#x8DEF;&#x5F84;&#x540D;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x987A;&#x5E8F;&#x5BFC;&#x5165;&#xFF09;&#x3002;&#x5982;&#x679C;&#x67D0;&#x4E2A;&#x5305;&#x88AB;&#x591A;&#x6B21;&#x5BFC;&#x5165;&#x7684;&#x8BDD;&#xFF0C;&#x5728;&#x6267;&#x884C;&#x7684;&#x65F6;&#x5019;&#x53EA;&#x4F1A;&#x5BFC;&#x5165;&#x4E00;&#x6B21;&#x3002;&#x5F53;&#x4E00;&#x4E2A;&#x5305;&#x88AB;&#x5BFC;&#x5165;&#x65F6;&#xFF0C;&#x5982;&#x679C;&#x5B83;&#x8FD8;&#x5BFC;&#x5165;&#x4E86;&#x5176;&#x5B83;&#x7684;&#x5305;&#xFF0C;&#x5219;&#x5148;&#x5C06;&#x5176;&#x5B83;&#x7684;&#x5305;&#x5305;&#x542B;&#x8FDB;&#x6765;&#xFF0C;&#x7136;&#x540E;&#x521B;&#x5EFA;&#x548C;&#x521D;&#x59CB;&#x5316;&#x8FD9;&#x4E2A;&#x5305;&#x7684;&#x5E38;&#x91CF;&#x548C;&#x53D8;&#x91CF;&#x3002;&#x7136;&#x540E;&#x5C31;&#x662F;&#x8C03;&#x7528;&#x5305;&#x91CC;&#x7684;<code>init</code>&#x51FD;&#x6570;&#xFF0C;&#x5982;&#x679C;&#x4E00;&#x4E2A;&#x5305;&#x6709;&#x591A;&#x4E2A;<code>init</code>&#x51FD;&#x6570;&#x7684;&#x8BDD;&#xFF0C;&#x5B9E;&#x73B0;&#x53EF;&#x80FD;&#x662F;&#x4EE5;&#x6587;&#x4EF6;&#x540D;&#x7684;&#x987A;&#x5E8F;&#x8C03;&#x7528;&#xFF0C;&#x540C;&#x4E00;&#x4E2A;&#x6587;&#x4EF6;&#x5185;&#x7684;&#x591A;&#x4E2A;<code>init</code>&#x5219;&#x662F;&#x4EE5;&#x51FA;&#x73B0;&#x7684;&#x987A;&#x5E8F;&#x4F9D;&#x6B21;&#x8C03;&#x7528;&#xFF08;<code>init</code>&#x4E0D;&#x662F;&#x666E;&#x901A;&#x51FD;&#x6570;&#xFF0C;&#x53EF;&#x4EE5;&#x5B9A;&#x4E49;&#x6709;&#x591A;&#x4E2A;&#xFF0C;&#x6240;&#x4EE5;&#x4E0D;&#x80FD;&#x88AB;&#x5176;&#x5B83;&#x51FD;&#x6570;&#x8C03;&#x7528;&#xFF09;&#x3002;&#x6700;&#x7EC8;&#xFF0C;&#x5728;<code>main</code>&#x5305;&#x7684;&#x6240;&#x6709;&#x5305;&#x5E38;&#x91CF;&#x3001;&#x5305;&#x53D8;&#x91CF;&#x88AB;&#x521B;&#x5EFA;&#x548C;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x5E76;&#x4E14;<code>init</code>&#x51FD;&#x6570;&#x88AB;&#x6267;&#x884C;&#x540E;&#xFF0C;&#x624D;&#x4F1A;&#x8FDB;&#x5165;<code>main.main</code>&#x51FD;&#x6570;&#xFF0C;&#x7A0B;&#x5E8F;&#x5F00;&#x59CB;&#x6B63;&#x5E38;&#x6267;&#x884C;&#x3002;&#x4E0B;&#x56FE;&#x662F;Go&#x7A0B;&#x5E8F;&#x51FD;&#x6570;&#x542F;&#x52A8;&#x987A;&#x5E8F;&#x7684;&#x793A;&#x610F;&#x56FE;&#xFF1A;</p>
<p><img src="../images/ch1.5-1-init.ditaa.png" alt=""></p>
<p><em>&#x56FE; 1.5-1 &#x5305;&#x521D;&#x59CB;&#x5316;&#x6D41;&#x7A0B;</em></p>
<p>&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x5728;<code>main.main</code>&#x51FD;&#x6570;&#x6267;&#x884C;&#x4E4B;&#x524D;&#x6240;&#x6709;&#x4EE3;&#x7801;&#x90FD;&#x8FD0;&#x884C;&#x5728;&#x540C;&#x4E00;&#x4E2A;Goroutine&#x4E2D;&#xFF0C;&#x4E5F;&#x662F;&#x8FD0;&#x884C;&#x5728;&#x7A0B;&#x5E8F;&#x7684;&#x4E3B;&#x7CFB;&#x7EDF;&#x7EBF;&#x7A0B;&#x4E2D;&#x3002;&#x5982;&#x679C;&#x67D0;&#x4E2A;<code>init</code>&#x51FD;&#x6570;&#x5185;&#x90E8;&#x7528;go&#x5173;&#x952E;&#x5B57;&#x542F;&#x52A8;&#x4E86;&#x65B0;&#x7684;Goroutine&#x7684;&#x8BDD;&#xFF0C;&#x65B0;&#x7684;Goroutine&#x548C;<code>main.main</code>&#x51FD;&#x6570;&#x662F;&#x5E76;&#x53D1;&#x6267;&#x884C;&#x7684;&#x3002;</p>
<p>&#x56E0;&#x4E3A;&#x6240;&#x6709;&#x7684;<code>init</code>&#x51FD;&#x6570;&#x548C;<code>main</code>&#x51FD;&#x6570;&#x90FD;&#x662F;&#x5728;&#x4E3B;&#x7EBF;&#x7A0B;&#x5B8C;&#x6210;&#xFF0C;&#x5B83;&#x4EEC;&#x4E5F;&#x662F;&#x6EE1;&#x8DB3;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#x6A21;&#x578B;&#x7684;&#x3002;</p>
<h2 id="155-goroutine&#x7684;&#x521B;&#x5EFA;">1.5.5 Goroutine&#x7684;&#x521B;&#x5EFA;</h2>
<p><code>go</code>&#x8BED;&#x53E5;&#x4F1A;&#x5728;&#x5F53;&#x524D;Goroutine&#x5BF9;&#x5E94;&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x524D;&#x521B;&#x5EFA;&#x65B0;&#x7684;Goroutine. &#x4F8B;&#x5982;:</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> a <span class="hljs-keyword">string</span>

<span class="hljs-keyword">func</span> f() {
    <span class="hljs-built_in">print</span>(a)
}

<span class="hljs-keyword">func</span> hello() {
    a = <span class="hljs-string">&quot;hello, world&quot;</span>
    <span class="hljs-keyword">go</span> f()
}
</code></pre>
<p>&#x6267;&#x884C;<code>go f()</code>&#x8BED;&#x53E5;&#x521B;&#x5EFA;Goroutine&#x548C;<code>hello</code>&#x51FD;&#x6570;&#x662F;&#x5728;&#x540C;&#x4E00;&#x4E2A;Goroutine&#x4E2D;&#x6267;&#x884C;, &#x6839;&#x636E;&#x8BED;&#x53E5;&#x7684;&#x4E66;&#x5199;&#x987A;&#x5E8F;&#x53EF;&#x4EE5;&#x786E;&#x5B9A;Goroutine&#x7684;&#x521B;&#x5EFA;&#x53D1;&#x751F;&#x5728;<code>hello</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x4E4B;&#x524D;, &#x4F46;&#x662F;&#x65B0;&#x521B;&#x5EFA;Goroutine&#x5BF9;&#x5E94;&#x7684;<code>f()</code>&#x7684;&#x6267;&#x884C;&#x4E8B;&#x4EF6;&#x548C;<code>hello</code>&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x7684;&#x4E8B;&#x4EF6;&#x5219;&#x662F;&#x4E0D;&#x53EF;&#x6392;&#x5E8F;&#x7684;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x5E76;&#x53D1;&#x7684;&#x3002;&#x8C03;&#x7528;<code>hello</code>&#x53EF;&#x80FD;&#x4F1A;&#x5728;&#x5C06;&#x6765;&#x7684;&#x67D0;&#x4E00;&#x65F6;&#x523B;&#x6253;&#x5370;<code>&quot;hello, world&quot;</code>&#xFF0C;&#x4E5F;&#x5F88;&#x53EF;&#x80FD;&#x662F;&#x5728;<code>hello</code>&#x51FD;&#x6570;&#x6267;&#x884C;&#x5B8C;&#x6210;&#x540E;&#x624D;&#x6253;&#x5370;&#x3002;</p>
<h2 id="156-&#x57FA;&#x4E8E;channel&#x7684;&#x901A;&#x4FE1;">1.5.6 &#x57FA;&#x4E8E;Channel&#x7684;&#x901A;&#x4FE1;</h2>
<p>Channel&#x901A;&#x4FE1;&#x662F;&#x5728;Goroutine&#x4E4B;&#x95F4;&#x8FDB;&#x884C;&#x540C;&#x6B65;&#x7684;&#x4E3B;&#x8981;&#x65B9;&#x6CD5;&#x3002;&#x5728;&#x65E0;&#x7F13;&#x5B58;&#x7684;Channel&#x4E0A;&#x7684;&#x6BCF;&#x4E00;&#x6B21;&#x53D1;&#x9001;&#x64CD;&#x4F5C;&#x90FD;&#x6709;&#x4E0E;&#x5176;&#x5BF9;&#x5E94;&#x7684;&#x63A5;&#x6536;&#x64CD;&#x4F5C;&#x76F8;&#x914D;&#x5BF9;&#xFF0C;&#x53D1;&#x9001;&#x548C;&#x63A5;&#x6536;&#x64CD;&#x4F5C;&#x901A;&#x5E38;&#x53D1;&#x751F;&#x5728;&#x4E0D;&#x540C;&#x7684;Goroutine&#x4E0A;&#xFF08;&#x5728;&#x540C;&#x4E00;&#x4E2A;Goroutine&#x4E0A;&#x6267;&#x884C;2&#x4E2A;&#x64CD;&#x4F5C;&#x5F88;&#x5BB9;&#x6613;&#x5BFC;&#x81F4;&#x6B7B;&#x9501;&#xFF09;&#x3002;<strong>&#x65E0;&#x7F13;&#x5B58;&#x7684;Channel&#x4E0A;&#x7684;&#x53D1;&#x9001;&#x64CD;&#x4F5C;&#x603B;&#x5728;&#x5BF9;&#x5E94;&#x7684;&#x63A5;&#x6536;&#x64CD;&#x4F5C;&#x5B8C;&#x6210;&#x524D;&#x53D1;&#x751F;.</strong></p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> done = <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">bool</span>)
<span class="hljs-keyword">var</span> msg <span class="hljs-keyword">string</span>

<span class="hljs-keyword">func</span> aGoroutine() {
    msg = <span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>
    done &lt;- <span class="hljs-literal">true</span>
}

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> aGoroutine()
    &lt;-done
    <span class="hljs-built_in">println</span>(msg)
}
</code></pre>
<p>&#x53EF;&#x4FDD;&#x8BC1;&#x6253;&#x5370;&#x51FA;&#x201C;hello, world&#x201D;&#x3002;&#x8BE5;&#x7A0B;&#x5E8F;&#x9996;&#x5148;&#x5BF9;<code>msg</code>&#x8FDB;&#x884C;&#x5199;&#x5165;&#xFF0C;&#x7136;&#x540E;&#x5728;<code>done</code>&#x7BA1;&#x9053;&#x4E0A;&#x53D1;&#x9001;&#x540C;&#x6B65;&#x4FE1;&#x53F7;&#xFF0C;&#x968F;&#x540E;&#x4ECE;<code>done</code>&#x63A5;&#x6536;&#x5BF9;&#x5E94;&#x7684;&#x540C;&#x6B65;&#x4FE1;&#x53F7;&#xFF0C;&#x6700;&#x540E;&#x6267;&#x884C;<code>println</code>&#x51FD;&#x6570;&#x3002;</p>
<p>&#x82E5;&#x5728;&#x5173;&#x95ED;Channel&#x540E;&#x7EE7;&#x7EED;&#x4ECE;&#x4E2D;&#x63A5;&#x6536;&#x6570;&#x636E;&#xFF0C;&#x63A5;&#x6536;&#x8005;&#x5C31;&#x4F1A;&#x6536;&#x5230;&#x8BE5;Channel&#x8FD4;&#x56DE;&#x7684;&#x96F6;&#x503C;&#x3002;&#x56E0;&#x6B64;&#x5728;&#x8FD9;&#x4E2A;&#x4F8B;&#x5B50;&#x4E2D;&#xFF0C;&#x7528;<code>close(c)</code>&#x5173;&#x95ED;&#x7BA1;&#x9053;&#x4EE3;&#x66FF;<code>done &lt;- false</code>&#x4F9D;&#x7136;&#x80FD;&#x4FDD;&#x8BC1;&#x8BE5;&#x7A0B;&#x5E8F;&#x4EA7;&#x751F;&#x76F8;&#x540C;&#x7684;&#x884C;&#x4E3A;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> done = <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">bool</span>)
<span class="hljs-keyword">var</span> msg <span class="hljs-keyword">string</span>

<span class="hljs-keyword">func</span> aGoroutine() {
    msg = <span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>
    <span class="hljs-built_in">close</span>(done)
}

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> aGoroutine()
    &lt;-done
    <span class="hljs-built_in">println</span>(msg)
}
</code></pre>
<p><strong>&#x5BF9;&#x4E8E;&#x4ECE;&#x65E0;&#x7F13;&#x51B2;Channel&#x8FDB;&#x884C;&#x7684;&#x63A5;&#x6536;&#xFF0C;&#x53D1;&#x751F;&#x5728;&#x5BF9;&#x8BE5;Channel&#x8FDB;&#x884C;&#x7684;&#x53D1;&#x9001;&#x5B8C;&#x6210;&#x4E4B;&#x524D;&#x3002;</strong></p>
<p>&#x57FA;&#x4E8E;&#x4E0A;&#x9762;&#x8FD9;&#x4E2A;&#x89C4;&#x5219;&#x53EF;&#x77E5;&#xFF0C;&#x4EA4;&#x6362;&#x4E24;&#x4E2A;Goroutine&#x4E2D;&#x7684;&#x63A5;&#x6536;&#x548C;&#x53D1;&#x9001;&#x64CD;&#x4F5C;&#x4E5F;&#x662F;&#x53EF;&#x4EE5;&#x7684;&#xFF08;&#x4F46;&#x662F;&#x5F88;&#x5371;&#x9669;&#xFF09;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> done = <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">bool</span>)
<span class="hljs-keyword">var</span> msg <span class="hljs-keyword">string</span>

<span class="hljs-keyword">func</span> aGoroutine() {
    msg = <span class="hljs-string">&quot;hello, world&quot;</span>
    &lt;-done
}
<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> aGoroutine()
    done &lt;- <span class="hljs-literal">true</span>
    <span class="hljs-built_in">println</span>(msg)
}
</code></pre>
<p>&#x4E5F;&#x53EF;&#x4FDD;&#x8BC1;&#x6253;&#x5370;&#x51FA;&#x201C;hello, world&#x201D;&#x3002;&#x56E0;&#x4E3A;<code>main</code>&#x7EBF;&#x7A0B;&#x4E2D;<code>done &lt;- true</code>&#x53D1;&#x9001;&#x5B8C;&#x6210;&#x524D;&#xFF0C;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;<code>&lt;-done</code>&#x63A5;&#x6536;&#x5DF2;&#x7ECF;&#x5F00;&#x59CB;&#xFF0C;&#x8FD9;&#x4FDD;&#x8BC1;<code>msg = &quot;hello, world&quot;</code>&#x88AB;&#x6267;&#x884C;&#x4E86;&#xFF0C;&#x6240;&#x4EE5;&#x4E4B;&#x540E;<code>println(msg)</code>&#x7684;msg&#x5DF2;&#x7ECF;&#x88AB;&#x8D4B;&#x503C;&#x8FC7;&#x4E86;&#x3002;&#x7B80;&#x800C;&#x8A00;&#x4E4B;&#xFF0C;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x9996;&#x5148;&#x5BF9;<code>msg</code>&#x8FDB;&#x884C;&#x5199;&#x5165;&#xFF0C;&#x7136;&#x540E;&#x4ECE;<code>done</code>&#x4E2D;&#x63A5;&#x6536;&#x4FE1;&#x53F7;&#xFF0C;&#x968F;&#x540E;<code>main</code>&#x7EBF;&#x7A0B;&#x5411;<code>done</code>&#x53D1;&#x9001;&#x5BF9;&#x5E94;&#x7684;&#x4FE1;&#x53F7;&#xFF0C;&#x6700;&#x540E;&#x6267;&#x884C;<code>println</code>&#x51FD;&#x6570;&#x5B8C;&#x6210;&#x3002;&#x4F46;&#x662F;&#xFF0C;&#x82E5;&#x8BE5;Channel&#x4E3A;&#x5E26;&#x7F13;&#x51B2;&#x7684;&#xFF08;&#x4F8B;&#x5982;&#xFF0C;<code>done = make(chan bool, 1)</code>&#xFF09;&#xFF0C;<code>main</code>&#x7EBF;&#x7A0B;&#x7684;<code>done &lt;- true</code>&#x63A5;&#x6536;&#x64CD;&#x4F5C;&#x5C06;&#x4E0D;&#x4F1A;&#x88AB;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x7684;<code>&lt;-done</code>&#x63A5;&#x6536;&#x64CD;&#x4F5C;&#x963B;&#x585E;&#xFF0C;&#x8BE5;&#x7A0B;&#x5E8F;&#x5C06;&#x65E0;&#x6CD5;&#x4FDD;&#x8BC1;&#x6253;&#x5370;&#x51FA;&#x201C;hello, world&#x201D;&#x3002;</p>
<p>&#x5BF9;&#x4E8E;&#x5E26;&#x7F13;&#x51B2;&#x7684;Channel&#xFF0C;<strong>&#x5BF9;&#x4E8E;Channel&#x7684;&#x7B2C;<code>K</code>&#x4E2A;&#x63A5;&#x6536;&#x5B8C;&#x6210;&#x64CD;&#x4F5C;&#x53D1;&#x751F;&#x5728;&#x7B2C;<code>K+C</code>&#x4E2A;&#x53D1;&#x9001;&#x64CD;&#x4F5C;&#x5B8C;&#x6210;&#x4E4B;&#x524D;&#xFF0C;&#x5176;&#x4E2D;<code>C</code>&#x662F;Channel&#x7684;&#x7F13;&#x5B58;&#x5927;&#x5C0F;&#x3002;</strong> &#x5982;&#x679C;&#x5C06;<code>C</code>&#x8BBE;&#x7F6E;&#x4E3A;0&#x81EA;&#x7136;&#x5C31;&#x5BF9;&#x5E94;&#x65E0;&#x7F13;&#x5B58;&#x7684;Channel&#xFF0C;&#x4E5F;&#x5373;&#x4F7F;&#x7B2C;K&#x4E2A;&#x63A5;&#x6536;&#x5B8C;&#x6210;&#x5728;&#x7B2C;K&#x4E2A;&#x53D1;&#x9001;&#x5B8C;&#x6210;&#x4E4B;&#x524D;&#x3002;&#x56E0;&#x4E3A;&#x65E0;&#x7F13;&#x5B58;&#x7684;Channel&#x53EA;&#x80FD;&#x540C;&#x6B65;&#x53D1;1&#x4E2A;&#xFF0C;&#x4E5F;&#x5C31;&#x7B80;&#x5316;&#x4E3A;&#x524D;&#x9762;&#x65E0;&#x7F13;&#x5B58;Channel&#x7684;&#x89C4;&#x5219;&#xFF1A;<strong>&#x5BF9;&#x4E8E;&#x4ECE;&#x65E0;&#x7F13;&#x51B2;Channel&#x8FDB;&#x884C;&#x7684;&#x63A5;&#x6536;&#xFF0C;&#x53D1;&#x751F;&#x5728;&#x5BF9;&#x8BE5;Channel&#x8FDB;&#x884C;&#x7684;&#x53D1;&#x9001;&#x5B8C;&#x6210;&#x4E4B;&#x524D;&#x3002;</strong></p>
<p>&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x6839;&#x636E;&#x63A7;&#x5236;Channel&#x7684;&#x7F13;&#x5B58;&#x5927;&#x5C0F;&#x6765;&#x63A7;&#x5236;&#x5E76;&#x53D1;&#x6267;&#x884C;&#x7684;Goroutine&#x7684;&#x6700;&#x5927;&#x6570;&#x76EE;, &#x4F8B;&#x5982;:</p>
<pre><code class="lang-go"><span class="hljs-keyword">var</span> limit = <span class="hljs-built_in">make</span>(<span class="hljs-keyword">chan</span> <span class="hljs-keyword">int</span>, <span class="hljs-number">3</span>)

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">for</span> _, w := <span class="hljs-keyword">range</span> work {
        <span class="hljs-keyword">go</span> <span class="hljs-keyword">func</span>() {
            limit &lt;- <span class="hljs-number">1</span>
            w()
            &lt;-limit
        }()
    }
    <span class="hljs-keyword">select</span>{}
}
</code></pre>
<p>&#x6700;&#x540E;&#x4E00;&#x53E5;<code>select{}</code>&#x662F;&#x4E00;&#x4E2A;&#x7A7A;&#x7684;&#x7BA1;&#x9053;&#x9009;&#x62E9;&#x8BED;&#x53E5;&#xFF0C;&#x8BE5;&#x8BED;&#x53E5;&#x4F1A;&#x5BFC;&#x81F4;<code>main</code>&#x7EBF;&#x7A0B;&#x963B;&#x585E;&#xFF0C;&#x4ECE;&#x800C;&#x907F;&#x514D;&#x7A0B;&#x5E8F;&#x8FC7;&#x65E9;&#x9000;&#x51FA;&#x3002;&#x8FD8;&#x6709;<code>for{}</code>&#x3001;<code>&lt;-make(chan int)</code>&#x7B49;&#x8BF8;&#x591A;&#x65B9;&#x6CD5;&#x53EF;&#x4EE5;&#x8FBE;&#x5230;&#x7C7B;&#x4F3C;&#x7684;&#x6548;&#x679C;&#x3002;&#x56E0;&#x4E3A;<code>main</code>&#x7EBF;&#x7A0B;&#x88AB;&#x963B;&#x585E;&#x4E86;&#xFF0C;&#x5982;&#x679C;&#x9700;&#x8981;&#x7A0B;&#x5E8F;&#x6B63;&#x5E38;&#x9000;&#x51FA;&#x7684;&#x8BDD;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x8C03;&#x7528;<code>os.Exit(0)</code>&#x5B9E;&#x73B0;&#x3002;</p>
<h2 id="157-&#x4E0D;&#x9760;&#x8C31;&#x7684;&#x540C;&#x6B65;">1.5.7 &#x4E0D;&#x9760;&#x8C31;&#x7684;&#x540C;&#x6B65;</h2>
<p>&#x524D;&#x9762;&#x6211;&#x4EEC;&#x5DF2;&#x7ECF;&#x5206;&#x6790;&#x8FC7;&#xFF0C;&#x4E0B;&#x9762;&#x4EE3;&#x7801;&#x65E0;&#x6CD5;&#x4FDD;&#x8BC1;&#x6B63;&#x5E38;&#x6253;&#x5370;&#x7ED3;&#x679C;&#x3002;&#x5B9E;&#x9645;&#x7684;&#x8FD0;&#x884C;&#x6548;&#x679C;&#x4E5F;&#x662F;&#x5927;&#x6982;&#x7387;&#x4E0D;&#x80FD;&#x6B63;&#x5E38;&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x3002;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> <span class="hljs-built_in">println</span>(<span class="hljs-string">&quot;&#x4F60;&#x597D;, &#x4E16;&#x754C;&quot;</span>)
}
</code></pre>
<p>&#x521A;&#x63A5;&#x89E6;Go&#x8BED;&#x8A00;&#x7684;&#x8BDD;&#xFF0C;&#x53EF;&#x80FD;&#x5E0C;&#x671B;&#x901A;&#x8FC7;&#x52A0;&#x5165;&#x4E00;&#x4E2A;&#x968F;&#x673A;&#x7684;&#x4F11;&#x7720;&#x65F6;&#x95F4;&#x6765;&#x4FDD;&#x8BC1;&#x6B63;&#x5E38;&#x7684;&#x8F93;&#x51FA;&#xFF1A;</p>
<pre><code class="lang-go"><span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">go</span> <span class="hljs-built_in">println</span>(<span class="hljs-string">&quot;hello, world&quot;</span>)
    time.Sleep(time.Second)
}
</code></pre>
<p>&#x56E0;&#x4E3A;&#x4E3B;&#x7EBF;&#x7A0B;&#x4F11;&#x7720;&#x4E86;1&#x79D2;&#x949F;&#xFF0C;&#x56E0;&#x6B64;&#x8FD9;&#x4E2A;&#x7A0B;&#x5E8F;&#x5927;&#x6982;&#x7387;&#x662F;&#x53EF;&#x4EE5;&#x6B63;&#x5E38;&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x7684;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x5F88;&#x591A;&#x4EBA;&#x4F1A;&#x89C9;&#x5F97;&#x8FD9;&#x4E2A;&#x7A0B;&#x5E8F;&#x5DF2;&#x7ECF;&#x6CA1;&#x6709;&#x95EE;&#x9898;&#x4E86;&#x3002;&#x4F46;&#x662F;&#x8FD9;&#x4E2A;&#x7A0B;&#x5E8F;&#x662F;&#x4E0D;&#x7A33;&#x5065;&#x7684;&#xFF0C;&#x4F9D;&#x7136;&#x6709;&#x5931;&#x8D25;&#x7684;&#x53EF;&#x80FD;&#x6027;&#x3002;&#x6211;&#x4EEC;&#x5148;&#x5047;&#x8BBE;&#x7A0B;&#x5E8F;&#x662F;&#x53EF;&#x4EE5;&#x7A33;&#x5B9A;&#x8F93;&#x51FA;&#x7ED3;&#x679C;&#x7684;&#x3002;&#x56E0;&#x4E3A;Go&#x7EBF;&#x7A0B;&#x7684;&#x542F;&#x52A8;&#x662F;&#x975E;&#x963B;&#x585E;&#x7684;&#xFF0C;<code>main</code>&#x7EBF;&#x7A0B;&#x663E;&#x5F0F;&#x4F11;&#x7720;&#x4E86;1&#x79D2;&#x949F;&#x9000;&#x51FA;&#x5BFC;&#x81F4;&#x7A0B;&#x5E8F;&#x7ED3;&#x675F;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x8FD1;&#x4F3C;&#x5730;&#x8BA4;&#x4E3A;&#x7A0B;&#x5E8F;&#x603B;&#x5171;&#x6267;&#x884C;&#x4E86;1&#x79D2;&#x591A;&#x65F6;&#x95F4;&#x3002;&#x73B0;&#x5728;&#x5047;&#x8BBE;<code>println</code>&#x51FD;&#x6570;&#x5185;&#x90E8;&#x5B9E;&#x73B0;&#x4F11;&#x7720;&#x7684;&#x65F6;&#x95F4;&#x5927;&#x4E8E;<code>main</code>&#x7EBF;&#x7A0B;&#x4F11;&#x7720;&#x7684;&#x65F6;&#x95F4;&#x7684;&#x8BDD;&#xFF0C;&#x5C31;&#x4F1A;&#x5BFC;&#x81F4;&#x77DB;&#x76FE;&#xFF1A;&#x540E;&#x53F0;&#x7EBF;&#x7A0B;&#x65E2;&#x7136;&#x5148;&#x4E8E;<code>main</code>&#x7EBF;&#x7A0B;&#x5B8C;&#x6210;&#x6253;&#x5370;&#xFF0C;&#x90A3;&#x4E48;&#x6267;&#x884C;&#x65F6;&#x95F4;&#x80AF;&#x5B9A;&#x662F;&#x5C0F;&#x4E8E;<code>main</code>&#x7EBF;&#x7A0B;&#x6267;&#x884C;&#x65F6;&#x95F4;&#x7684;&#x3002;&#x5F53;&#x7136;&#x8FD9;&#x662F;&#x4E0D;&#x53EF;&#x80FD;&#x7684;&#x3002;</p>
<p>&#x4E25;&#x8C28;&#x7684;&#x5E76;&#x53D1;&#x7A0B;&#x5E8F;&#x7684;&#x6B63;&#x786E;&#x6027;&#x4E0D;&#x5E94;&#x8BE5;&#x662F;&#x4F9D;&#x8D56;&#x4E8E;CPU&#x7684;&#x6267;&#x884C;&#x901F;&#x5EA6;&#x548C;&#x4F11;&#x7720;&#x65F6;&#x95F4;&#x7B49;&#x4E0D;&#x9760;&#x8C31;&#x7684;&#x56E0;&#x7D20;&#x7684;&#x3002;&#x4E25;&#x8C28;&#x7684;&#x5E76;&#x53D1;&#x4E5F;&#x5E94;&#x8BE5;&#x662F;&#x53EF;&#x4EE5;&#x9759;&#x6001;&#x63A8;&#x5BFC;&#x51FA;&#x7ED3;&#x679C;&#x7684;&#xFF1A;&#x6839;&#x636E;&#x7EBF;&#x7A0B;&#x5185;&#x987A;&#x5E8F;&#x4E00;&#x81F4;&#x6027;&#xFF0C;&#x7ED3;&#x5408;Channel&#x6216;<code>sync</code>&#x540C;&#x6B65;&#x4E8B;&#x4EF6;&#x7684;&#x53EF;&#x6392;&#x5E8F;&#x6027;&#x6765;&#x63A8;&#x5BFC;&#xFF0C;&#x6700;&#x7EC8;&#x5B8C;&#x6210;&#x5404;&#x4E2A;&#x7EBF;&#x7A0B;&#x5404;&#x6BB5;&#x4EE3;&#x7801;&#x7684;&#x504F;&#x5E8F;&#x5173;&#x7CFB;&#x6392;&#x5E8F;&#x3002;&#x5982;&#x679C;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x65E0;&#x6CD5;&#x6839;&#x636E;&#x6B64;&#x89C4;&#x5219;&#x6765;&#x6392;&#x5E8F;&#xFF0C;&#x90A3;&#x4E48;&#x5B83;&#x4EEC;&#x5C31;&#x662F;&#x5E76;&#x53D1;&#x7684;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x6267;&#x884C;&#x5148;&#x540E;&#x987A;&#x5E8F;&#x4E0D;&#x53EF;&#x9760;&#x7684;&#x3002;</p>
<p>&#x89E3;&#x51B3;&#x540C;&#x6B65;&#x95EE;&#x9898;&#x7684;&#x601D;&#x8DEF;&#x662F;&#x76F8;&#x540C;&#x7684;&#xFF1A;&#x4F7F;&#x7528;&#x663E;&#x5F0F;&#x7684;&#x540C;&#x6B65;&#x3002;</p>

                                
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